#include<bits/stdc++.h> using namespace std; int main(){ /** int a,b; cin>>a>>b; cout<<(a+b)*2<<" "<<a*b; int n,a,b,c; cin>>n; a=n %10; b=n /10%10; c=n /100; cout<<a+b+c; **/ int a=5,b=8,c=12; printf("%.3lf\n",(a+b+c)*1.0/3); printf("%d %d\n",39/a,39%a); printf("%d %d\n",39/b,39%b); printf("%d %d\n",39/c,39%c); return 0; }