#include <stdio.h> int main() { int x = 0,n; for(int i = 0;i<3;++i) { scanf("%d",&n); x+=n; } printf(x>=180? "NO":"YES"); return 0; }
#include <stdio.h> int main() { int x = 0,n; for(int i = 0;i<3;++i) { scanf("%d",&n); x+=n; } printf(x>=180? "NO":"YES"); return 0; }