# include<iostream> using namespace std; int main(){ int n,m,c,d,l,o,u,y,t,e,r; c=5; d=8; m=12; printf("%.3lf\n",(c+d+m)/3.0); cout<<39/c<<" "<<39%c<<endl; cout<<39/d<<" "<<39%d<<endl; cout<<39/m<<" "<<39%m<<endl; return 0; }