#include <iostream> #include <cstdio> using namespace std; int main() { const int X=5,P=8,PT=12; printf("%.3f \n",(X+P+PT)/3.0); cout<<39/X<<" "<<39%X<<endl; cout<<39/P<<" "<<39%P<<endl; cout<<39/PT<<" "<<39%PT<<endl; return 0; }