#include <iostream>
#include <vector>
#include <cmath>
using namespace std;

int main() {
	vector <long double> v;
	long double a, average=0;
	while(cin>>a){
		average+=a;
		v.push_back(a);
	}
	average/=v.size();
	cout<<average<<'\n';
	for(int i=0; i<v.size(); i++)cout<<abs(v[i]-average)<<' ';
	return 0;
}