#include <stdio.h>
#include <stdbool.h>

bool digits[10] = { 0 };

bool checkDigit(int origin, int toBeChecked) {
    bool originDigit[10] = { 0 }, toBeCheckedDigit[10] = { 0 };
    int i = 0;
    while (toBeChecked > 0) {
        if (toBeCheckedDigit[toBeChecked % 10] == true) {
            return false;
        }
        else {
            toBeCheckedDigit[toBeChecked % 10] = true;
        }
        toBeChecked /= 10;
    }
    while (origin > 0) {
        originDigit[origin % 10] = true;
        origin /= 10;
    }
    while (i < 10) {
        if (originDigit[i] != toBeCheckedDigit[i]) {
            return false;
        }
        i++;
    }
    return true;
}

void pickDigit(int layer, int picked) {
    int i = 0;
    if (layer == 7) {
        // printf("%d\n", picked);
        if (checkDigit(picked, 2 * picked) && checkDigit(picked, 3 * picked)) {
            printf("%d\n", picked);
        }
    }
    else if (layer == 1) {
        for (i = 1; i <= 3; i++) {
            digits[i] = true;
            pickDigit(2, i);
            digits[i] = false;
        }
    }
    else {
        for (i = 0; i <= 9; i++) {
            if (digits[i] == false) {
                digits[i] = true;
                pickDigit(layer + 1, picked * 10 + i);
                digits[i] = false;
            }
        }
    }
}

int main() {
    pickDigit(1, 0);
    return 0;
}