#include <stdio.h>
int main()
{
char s[] = "c c++, java, python, c#";
int size = sizeof(s)/sizeof(s[0]);
int i = 0;
while (i < size && s[i] != ',') {
i++;
}
while (i < size) {
s[i] = s[i + 1];
i++;
}
printf("%s\n", s);
return 0;
}
/*
run:
c c++ java, python, c#
*/