#include <iostream>

int main(){
    int a,b,c,d,e,f;
    int p;
    std::cin >> a >> b;
    
    for(int i=a;i<=b;i++){
        if((i%3)==0){
            std::cout << i << std::endl;
        } else {
            p=1000000000;
            f=1;
            for(int j=10;j>0;j--){
                c = i % p;
                if(c==i){
                    p /= 10;
                    continue;
                }
                d = i / p;
                e = d % (f*10);
                f = d;
                if(e==3){
                    std::cout << i << std::endl;
                    break;
                }
                p /= 10;
            }
        }
    }
}