tj

#include <iostream>
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using namespace std;
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bool leap(int y){
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    if(y % 4 == 0 && y % 100 != 0 || y % 400 == 0){
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        return true;
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    }else{
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        return false;
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    }
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}
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int main(){
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    int y;
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    cin >> y;
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    if(leap(y)){
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        cout << "YES";
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    }else{
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        cout << "NO";
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    }
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    return 0;
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