#include <iostream>
using namespace std;
int main() {
int a, b, c;
cin >> a >> b >> c;
bool condition = (a < b + c && b < a + c && c < a + b);
cout << (char)(condition * 'Y' + !condition * 'N')
<< (char)(condition * 'E' + !condition * 'O')
<< (char)(condition * 'S' + !condition * ' ');
return 0;
}
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