#include <stdio.h> 
#define N 10 

int main(void) 
{ 
    int cisla[N] = {5, 21, 2, 8, 10, 2, 21, 14, 7, 6};
    int suma = 0; 
    float prumer = 0; 

    puts("Zadana posloupnost:"); 
    for (unsigned short i = 0; i < N; i++)
    { 
        printf("%d ", cisla[i]); 
        suma += cisla[i]; 
    } 

    prumer = (float) suma / N; 
    printf("\n\nAritmeticky prumer postupnosti je %.2f.\n", prumer); 

    return 0; 
}