#include <stdio.h>

int main() {
    int T;
    scanf("%d", &T);
    while (T--) {
        int K;
        scanf("%d", &K);

        int mod = K % 6; // cycle repeats every 6 operations

        // Predefined states for mod 0 to 5
        char *results[] = {"RGB", "GRB", "GBR", "BGR", "BRG", "RBG"};

        printf("%s\n", results[mod]);
    }
    return 0;
}