#include <iostream>
using namespace std;
int main() {
string s="1,2,3,4,5";
char cl=',';
for(string::iterator it=s.begin();it!=s.end();++it)
if (*it == cl)
cout << endl;
else cout << *it;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKICAKCmludCBtYWluKCkgewoJc3RyaW5nIHM9IjEsMiwzLDQsNSI7CgljaGFyICAgY2w9JywnOwoJZm9yKHN0cmluZzo6aXRlcmF0b3IgaXQ9cy5iZWdpbigpO2l0IT1zLmVuZCgpOysraXQpIAoJICBpZiAoKml0ID09IGNsKSAKCSAgCWNvdXQgPDwgZW5kbDsgCgkgIGVsc2UgY291dCA8PCAqaXQ7CgoJcmV0dXJuIDA7Cn0=