you give string number represent positive integer character digitReturn result string remove exactly occurrence digit number value result stre decimal form maximize the test case generate digit occur number example 1input number 123 digit 3output 12explanation there 3 123 after remove 3 result 12example 2input number 1231 digit 1output 231explanation we remove 1 231 remove second 1 123since 231 123 return 231example 3input number 551 digit 5output 51explanation we remove second 5 551both result stre 51 constraints2 numberlength 100number consist digit 1 9digit digit 1 9digit occur number