#include <iostream>
using namespace std;
#define FOUR 4
#define PADDFOUR(x) (x%FOUR > 0)?FOUR-(x%FOUR):0
int main() {
cout<<PADDFOUR(30);
cout<<30%4;
//cout<<PADDFOUR(31);cout<<endl;
//cout<<PADDFOUR(32);cout<<endl;
//cout<<PADDFOUR(33);cout<<endl;
return 0;
}
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