#include <iostream>
using namespace std;
int main() {
string str="ahmed";
string str1="sh";
size_t found = str.find(str1);
cout<<found;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CgkKCXN0cmluZyBzdHI9ImFobWVkIjsKCXN0cmluZyBzdHIxPSJzaCI7Cgkgc2l6ZV90IGZvdW5kID0gc3RyLmZpbmQoc3RyMSk7CiAgICAKICAgIGNvdXQ8PGZvdW5kOwoJCglyZXR1cm4gMDsKfQ==