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