# Call MeFile: [call_me](call_me)
Run the file:```# ./call_me
There is nothing...Bye!```Running `strings`:```# strings call_me | grep Inno/home/master/Documents/Projects/InnoCTF2019/Ural2018/Call me by my name```Running `readelf -s call_me` saw a function called `flag`:```# readelf -s call_me 66: 00000000000014f3    39 FUNC    GLOBAL DEFAULT   13 main67: 0000000000004040     0 OBJECT  GLOBAL HIDDEN    23 __TMC_END__68: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND _ITM_registerTMCloneTable69: 0000000000001159   922 FUNC    GLOBAL DEFAULT   13 flag70: 0000000000000000     0 FUNC    WEAK   DEFAULT  UND __cxa_finalize@@GLIBC_2.271: 0000000000001000     0 FUNC    GLOBAL HIDDEN    11 _init```The challenge named `Call me` I guess we can call the function 
After a quick google search, we found gdb can done [this](https://stackoverflow.com/questions/1354731/how-to-evaluate-functions-in-gdb)
```# gdb call_me......pwndbg> break mainBreakpoint 1 at 0x1502: file var 2.c, line 20.pwndbg> runStarting program: /root/Downloads/InnoCTF2019/call_me/call_me 
Breakpoint 1, main (argc=1, argv=0x7fffffffe188) at var 2.c:20......... ► f 0     555555555502 main+15   f 1     7ffff7e0809b __libc_start_main+235Breakpoint mainpwndbg> call flag()
Your flag:InnoCTF{How_d1d_y0u_f1nd_m3_7f1bc88}�$1 = 39```
# Flag> InnoCTF{How_d1d_y0u_f1nd_m3_7f1bc88}