#include <stdio.h>

int main() {
    int n=2, m = 5;
    int a[1:3] = {10, 20, 30};
    int b[n:m];
    printf("a[1] = %d\n", a[1]);
    printf("a[2] = %d\n", a[2]);
    printf("a[3] = %d\n", a[3]);
    b[n] = 100;
    b[n+1] = 200;
    b[m] = 300;
}