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

bool exists3(long number) {
    char str[32];
    int len = sprintf(str, "%ld", number);
    for(int i = 0; i <= len; i++) {
        if(str[i] == '3')
            return true;
    }
    return false;
}

int main(void) {
    long A, B;
    scanf("%ld %ld", &A, &B);

    for(; A <= B; A++) {
        if (A % 3 == 0 || exists3(A)) {
            printf("%ld\n", A);
        }
    }
}