#include <iostream>
#include <cmath>

int main() {
    int A, B;
    int digit = 1;
    int elem;
    
    std::cin >> A >> B;
    
    for (digit = 1; digit <= 11; digit++) {
        if (B <= (int)pow(10, digit))  break;
    }
    
    for (int i = A; i <= B; i++) {
        if (i % 3 == 0) {
            std::cout << i << std::endl;
        } else {
            for (int j = 1; j <= digit; j++) {
                if (j == 1) elem = i % 10;
                else elem = (i / (int)pow(10, j-1)) % 10;
                
                if (elem == 3) {
                    std::cout << i << std::endl;
                    break;
                }
            }
        }
    }
	
	return 0;
}