#include <stdio.h>
int main(void){
    long A, B, t;
    scanf("%d%d", &A, &B);
    do{
        t = A;
        if(A % 3 == 0){
            printf("%d\n", A);
        }
        else{
            while(t != 0){
                if(t % 10 == 3){
                    printf("%d\n", A);
                    break;
                }
                t /= 10;
            }
        }
        A++;
    }while(A != B + 1);
    return 0;
}