var S = readLine()!
print(S == "ABC" ? "ARC" : "ABC")
; ModuleID = '/data/TheStack_IR/OJ_Samples/Collated/Swift/Source_321/llvm_OZ.ll'
source_filename = "/data/TheStack_IR/OJ_Samples/Collated/Swift/Source_321/llvm_OZ.ll"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%TSS = type <{ %Ts11_StringGutsV }>
%Ts11_StringGutsV = type <{ %Ts13_StringObjectV }>
%Ts13_StringObjectV = type <{ %Ts6UInt64V, %swift.bridge* }>
%Ts6UInt64V = type <{ i64 }>
%swift.bridge = type opaque
%swift.type_descriptor = type opaque
%swift.type = type { i64 }
%swift.refcounted = type { %swift.type*, i64 }
%Ts28__ContiguousArrayStorageBaseC = type <{ %swift.refcounted, %Ts10_ArrayBodyV }>
%Ts10_ArrayBodyV = type <{ %TSo22_SwiftArrayBodyStorageV }>
%TSo22_SwiftArrayBodyStorageV = type <{ %TSi, %TSu }>
%TSi = type <{ i64 }>
%TSu = type <{ i64 }>

@"$s7llvm_OZ1SSSvp" = hidden local_unnamed_addr global %TSS zeroinitializer, align 8
@"$ss23_ContiguousArrayStorageCMn" = external global %swift.type_descriptor, align 4
@"got.$ss23_ContiguousArrayStorageCMn" = private unnamed_addr constant %swift.type_descriptor* @"$ss23_ContiguousArrayStorageCMn"
@"symbolic _____yypG s23_ContiguousArrayStorageC" = linkonce_odr hidden constant <{ i8, i32, [4 x i8], i8 }> <{ i8 2, i32 trunc (i64 sub (i64 ptrtoint (%swift.type_descriptor** @"got.$ss23_ContiguousArrayStorageCMn" to i64), i64 ptrtoint (i32* getelementptr inbounds (<{ i8, i32, [4 x i8], i8 }>, <{ i8, i32, [4 x i8], i8 }>* @"symbolic _____yypG s23_ContiguousArrayStorageC", i32 0, i32 1) to i64)) to i32), [4 x i8] c"yypG", i8 0 }>, section "swift5_typeref", no_sanitize_address, align 2
@"$ss23_ContiguousArrayStorageCyypGMD" = linkonce_odr hidden global { i32, i32 } { i32 trunc (i64 sub (i64 ptrtoint (<{ i8, i32, [4 x i8], i8 }>* @"symbolic _____yypG s23_ContiguousArrayStorageC" to i64), i64 ptrtoint ({ i32, i32 }* @"$ss23_ContiguousArrayStorageCyypGMD" to i64)) to i32), i32 -9 }, align 8
@"$sSSN" = external global %swift.type, align 8
@"\01l_entry_point" = private constant { i32, i32 } { i32 trunc (i64 sub (i64 ptrtoint (i32 (i32, i8**)* @main to i64), i64 ptrtoint ({ i32, i32 }* @"\01l_entry_point" to i64)) to i32), i32 0 }, section "swift5_entry", align 4
@__swift_reflection_version = linkonce_odr hidden constant i16 3
@_swift1_autolink_entries = private constant [77 x i8] c"-lswift_Concurrency\00-lswiftCore\00-lswift_StringProcessing\00-lswift_RegexParser\00", section ".swift1_autolink_entries", no_sanitize_address, align 8
@llvm.compiler.used = appending global [4 x i8*] [i8* bitcast ({ i32, i32 }* @"\01l_entry_point" to i8*), i8* bitcast (i16* @__swift_reflection_version to i8*), i8* getelementptr inbounds ([77 x i8], [77 x i8]* @_swift1_autolink_entries, i32 0, i32 0), i8* bitcast (i32 (i32, i8**)* @main to i8*)], section "llvm.metadata"

; Function Attrs: minsize optsize
define protected i32 @main(i32 %0, i8** nocapture readnone %1) #0 {
entry:
  %2 = tail call swiftcc { i64, i64 } @"$ss8readLine16strippingNewlineSSSgSb_tF"(i1 true)
  %3 = extractvalue { i64, i64 } %2, 0
  %4 = extractvalue { i64, i64 } %2, 1
  %5 = icmp eq i64 %4, 0
  br i1 %5, label %22, label %6

6:                                                ; preds = %entry
  %7 = inttoptr i64 %4 to %swift.bridge*
  store i64 %3, i64* getelementptr inbounds (%TSS, %TSS* @"$s7llvm_OZ1SSSvp", i64 0, i32 0, i32 0, i32 0, i32 0), align 8
  store %swift.bridge* %7, %swift.bridge** getelementptr inbounds (%TSS, %TSS* @"$s7llvm_OZ1SSSvp", i64 0, i32 0, i32 0, i32 1), align 8
  %8 = tail call %swift.type* @__swift_instantiateConcreteTypeFromMangledName({ i32, i32 }* nonnull @"$ss23_ContiguousArrayStorageCyypGMD") #5
  %9 = tail call noalias %swift.refcounted* @swift_allocObject(%swift.type* %8, i64 64, i64 7) #4
  %10 = getelementptr inbounds %swift.refcounted, %swift.refcounted* %9, i64 1
  %._storage.count._value = bitcast %swift.refcounted* %10 to i64*
  store i64 1, i64* %._storage.count._value, align 8
  %._storage._capacityAndFlags = getelementptr inbounds %swift.refcounted, %swift.refcounted* %9, i64 1, i32 1
  store i64 2, i64* %._storage._capacityAndFlags, align 8
  %11 = icmp eq i64 %3, 4407873
  %12 = icmp eq i64 %4, -2089670227099910144
  %or.cond = select i1 %11, i1 %12, i1 false
  br i1 %or.cond, label %15, label %13

13:                                               ; preds = %6
  %14 = tail call swiftcc i1 @"$ss27_stringCompareWithSmolCheck__9expectingSbs11_StringGutsV_ADs01_G16ComparisonResultOtF"(i64 %3, %swift.bridge* nonnull %7, i64 4407873, %swift.bridge* nonnull inttoptr (i64 -2089670227099910144 to %swift.bridge*), i8 0)
  %spec.select = select i1 %14, i64 4411969, i64 4407873
  br label %15

15:                                               ; preds = %6, %13
  %16 = phi i64 [ %spec.select, %13 ], [ 4411969, %6 ]
  %17 = bitcast %swift.refcounted* %9 to %Ts28__ContiguousArrayStorageBaseC*
  %18 = getelementptr inbounds %swift.refcounted, %swift.refcounted* %9, i64 2
  %19 = getelementptr inbounds %swift.refcounted, %swift.refcounted* %9, i64 3, i32 1
  %20 = bitcast i64* %19 to %swift.type**
  store %swift.type* @"$sSSN", %swift.type** %20, align 8
  %._guts._object._countAndFlagsBits._value = bitcast %swift.refcounted* %18 to i64*
  store i64 %16, i64* %._guts._object._countAndFlagsBits._value, align 8
  %._guts._object._object = getelementptr inbounds %swift.refcounted, %swift.refcounted* %9, i64 2, i32 1
  %21 = bitcast i64* %._guts._object._object to %swift.bridge**
  store %swift.bridge* inttoptr (i64 -2089670227099910144 to %swift.bridge*), %swift.bridge** %21, align 8
  tail call swiftcc void @"$ss5print_9separator10terminatoryypd_S2StF"(%Ts28__ContiguousArrayStorageBaseC* %17, i64 32, %swift.bridge* nonnull inttoptr (i64 -2233785415175766016 to %swift.bridge*), i64 10, %swift.bridge* nonnull inttoptr (i64 -2233785415175766016 to %swift.bridge*))
  tail call void @swift_release(%swift.refcounted* nonnull %9) #4
  ret i32 0

22:                                               ; preds = %entry
  tail call void asm sideeffect "", "n"(i32 0) #4
  tail call void @llvm.trap()
  unreachable
}

; Function Attrs: minsize optsize
declare swiftcc { i64, i64 } @"$ss8readLine16strippingNewlineSSSgSb_tF"(i1) local_unnamed_addr #0

; Function Attrs: cold noreturn nounwind
declare void @llvm.trap() #1

; Function Attrs: minsize mustprogress nofree noinline nounwind optsize readonly willreturn
define linkonce_odr hidden %swift.type* @__swift_instantiateConcreteTypeFromMangledName({ i32, i32 }* %0) local_unnamed_addr #2 {
entry:
  %1 = bitcast { i32, i32 }* %0 to i64*
  %2 = load atomic i64, i64* %1 monotonic, align 8
  %3 = icmp slt i64 %2, 0
  br i1 %3, label %7, label %4, !prof !6

4:                                                ; preds = %7, %entry
  %5 = phi i64 [ %2, %entry ], [ %15, %7 ]
  %6 = inttoptr i64 %5 to %swift.type*
  ret %swift.type* %6

7:                                                ; preds = %entry
  %8 = ashr i64 %2, 32
  %9 = sub nsw i64 0, %8
  %sext = shl i64 %2, 32
  %10 = ashr exact i64 %sext, 32
  %11 = ptrtoint { i32, i32 }* %0 to i64
  %12 = add i64 %10, %11
  %13 = inttoptr i64 %12 to i8*
  %14 = tail call swiftcc %swift.type* @swift_getTypeByMangledNameInContext2(i8* %13, i64 %9, %swift.type_descriptor* null, i8** null) #6
  %15 = ptrtoint %swift.type* %14 to i64
  store atomic i64 %15, i64* %1 monotonic, align 8
  br label %4
}

; Function Attrs: argmemonly nounwind
declare swiftcc %swift.type* @swift_getTypeByMangledNameInContext2(i8*, i64, %swift.type_descriptor*, i8**) local_unnamed_addr #3

; Function Attrs: nounwind
declare %swift.refcounted* @swift_allocObject(%swift.type*, i64, i64) local_unnamed_addr #4

; Function Attrs: minsize optsize
declare swiftcc i1 @"$ss27_stringCompareWithSmolCheck__9expectingSbs11_StringGutsV_ADs01_G16ComparisonResultOtF"(i64, %swift.bridge*, i64, %swift.bridge*, i8) local_unnamed_addr #0

; Function Attrs: minsize optsize
declare swiftcc void @"$ss5print_9separator10terminatoryypd_S2StF"(%Ts28__ContiguousArrayStorageBaseC*, i64, %swift.bridge*, i64, %swift.bridge*) local_unnamed_addr #0

; Function Attrs: nounwind
declare void @swift_release(%swift.refcounted*) local_unnamed_addr #4

attributes #0 = { minsize optsize "frame-pointer"="none" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { cold noreturn nounwind }
attributes #2 = { minsize mustprogress nofree noinline nounwind optsize readonly willreturn "frame-pointer"="non-leaf" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { argmemonly nounwind }
attributes #4 = { nounwind }
attributes #5 = { nounwind readonly }
attributes #6 = { argmemonly nounwind readonly }

!swift.module.flags = !{!0}
!llvm.linker.options = !{}
!llvm.module.flags = !{!1, !2, !3, !4, !5}

!0 = !{!"standard-library", i1 false}
!1 = !{i32 1, !"wchar_size", i32 4}
!2 = !{i32 8, !"PIC Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{i32 4, !"Objective-C Garbage Collection", i32 84477696}
!5 = !{i32 1, !"Swift Version", i32 7}
!6 = !{!"branch_weights", i32 1, i32 2000}
