#include<bits/stdc++.h> using namespace std; int main(){ int ba = 5,ap = 8,gr = 12; double average=(ba + ap + gr)/3.0; printf("%.31f\n",average); cout<<39/ba<<39%ba<<endl; cout<<39/ap<<39%ap<<endl; cout<<39/gr<<39%gr<<endl; return 0; }