:1:4: error: stray '#' in program
    1 |  1 #include<iostream>
      |    ^
:2:4: error: stray '#' in program
    2 |  2 #include<string.h>
      |    ^
:3:4: error: stray '#' in program
    3 |  3 #include<stdlib.h>
      |    ^
:1:2: error: expected unqualified-id before numeric constant
    1 |  1 #include<iostream>
      |  ^
:5:2: error: expected unqualified-id before numeric constant
    5 |  5 int main()
      |  ^