#include <iostream>
#include <string>
#include <unordered_map>
using namespace std;
int main() {
hash<string> hasher;
cout << hasher("This is a test") << endl;
cout << hasher("This is a tes") << endl;
cout << hasher("This is a te") << endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3RyaW5nPgojaW5jbHVkZSA8dW5vcmRlcmVkX21hcD4KCnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpIHsKCWhhc2g8c3RyaW5nPiBoYXNoZXI7Cgljb3V0IDw8IGhhc2hlcigiVGhpcyBpcyBhIHRlc3QiKSA8PCBlbmRsOwoJY291dCA8PCBoYXNoZXIoIlRoaXMgaXMgYSB0ZXMiKSA8PCBlbmRsOwoJY291dCA8PCBoYXNoZXIoIlRoaXMgaXMgYSB0ZSIpIDw8IGVuZGw7CglyZXR1cm4gMDsKfQ==