#include <stdio.h>

int main() {
    // declare an array of size 4
    int a[4];

    // storing integers in the array
    a[0] = 10;
    a[1] = 20;
    a[2] = a[1] / a[0]; // a[2] will be set to 20/10 = 2
    a[3] = a[1] - 2;    // a[3] will be set to 20-2 = 18

    // printing the integers
    printf("%d %d %d %d\n", a[0], a[1], a[2], a[3]);
    return 0;
}