#include<iostream> #include<iomanip> using namespace std; int main(){ int b=5,a=8,g=12; double av; av=(b+a+g)/3.0; cout<<fixed<<setprecision(3)<<av<<"\n"; cout<<39/b<<" "<<39%b<<"\n"; cout<<39/a<<" "<<39%a<<"\n"; cout<<39/g<<" "<<39%g<<"\n"; return 0; }