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#include<bits/stdc++.h> using namespace std; int main() { int a=5; int b=8; int c=12; int d; d = a + b + c; printf("%.3f",d/3.0); cout<<endl; cout<<39/5<<" "<<39%5<<endl; cout<<39/8<<" "<<39%8<<endl; cout<<39/12<<" "<<39%12<<endl; return 0; }