#include<iostream>
#include<string.h>
using namespace std;
int main()
{
char str[]="abcdef";
strcpy(str,"xyz");
cout<<str[4];
cout<<str;
return 0;
}
I2luY2x1ZGU8aW9zdHJlYW0+CiNpbmNsdWRlPHN0cmluZy5oPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwppbnQgbWFpbigpIAp7CgljaGFyIHN0cltdPSJhYmNkZWYiOwoJc3RyY3B5KHN0ciwieHl6Iik7Cgljb3V0PDxzdHJbNF07Cgljb3V0PDxzdHI7CglyZXR1cm4gMDsKfQ==