#include <stdio.h>
#define SIZE 10

int main() {
    double fractions[SIZE] = {0.0};
    
    fractions[4];
    fractions[9] = 1.667;
    fractions[6] = 3.333;
    
    printf("%.2f %.2f\n", fractions[6], fractions[9]);
    
    for (size_t x = 0; x < SIZE; ++x) {
        printf("%f\n", fractions[x]);
    }
    
    return 0;
}