5599

#include <stdio.h>

int main() {
    int odd, zero, minOdd, min, a, n, i;
    odd = 0; zero = -1; minOdd = -1;
    min = 1000000001;
    scanf("%d", &n);

    for(i = 0; i < n; i++) {
        scanf("%d", &a);
        if(a == 0)
            zero = i;
        if(a % 2 != 0) {
            odd++;
            if(a < min) {
                min = a;
                minOdd = i;
            }
        }
    }

    for(i = 0; i < n; i++)
        if((i != zero && odd % 2 == 0) || (i != zero && i != minOdd))
                printf("%d ", i+1);

    return 0;
}