#include <cstdio>
#include <iostream>
using namespace std;
int main() {
long long a; scanf("%d",&a);
cout << a << endl;
return 0;
}
I2luY2x1ZGUgPGNzdGRpbz4KI2luY2x1ZGUgPGlvc3RyZWFtPgoKdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewogbG9uZyBsb25nIGE7IHNjYW5mKCIlZCIsJmEpOwogY291dCA8PCBhIDw8IGVuZGw7CiByZXR1cm4gMDsKfQ==