#include <iostream>
#include <math.h>
using namespace std;

int main()
{
	int pole[5] = {15, 25, 13, 5, 50};
	
	float soucet = 0;
	int i;
	
	for( i = 0 ; i < 5 ; i ++ )
	{
		soucet = soucet + pole[i];
	}
	
	float prumer = soucet / 5;
	cout << "prumer je " << prumer << "\n";
	
	int nejbliz = pole[0];
	for (i = 1 ; i < 5 ; i ++ )
	{
		if( (pole[i] - prumer) * (pole[i] - prumer) < (nejbliz - prumer) * (nejbliz - prumer) )		
		{
			nejbliz = pole[i];
		}
	}
	cout << " nejblizsi je " << nejbliz;
}