#29975: c++記得開long long!!!
Asuna950520
(YuukiAsunaOuO)
#include<iostream>
using namespace std;
int main(void)
{
long long int a;
cin>>a;
cout<<a-1911;
}
#include<iostream>
using namespace std;
int main(void)
{
long long int a;
cin>>a;
cout<<a-1911;
}