#include <iostream>
#include<string>
using namespace std;
int main() {
// your code goes here
string s="what";
size_t x=s.npos;
cout<<x<<endl<<s.npos;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZTxzdHJpbmc+CnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpIHsKCS8vIHlvdXIgY29kZSBnb2VzIGhlcmUKCXN0cmluZyBzPSJ3aGF0IjsKCXNpemVfdCB4PXMubnBvczsKCWNvdXQ8PHg8PGVuZGw8PHMubnBvczsKCXJldHVybiAwOwp9Cg==