#include #define rep(i,n) for(int i=0;i<(n);i++) #define ALL(A) A.begin(), A.end() using namespace std; typedef long long ll; typedef pair P; string ll2s(ll n){ stringstream ss; ss << n; return ss.str(); } bool is_in_three(string s){ int n = s.length(); bool res = false; rep (i, n){ res |= (s[i] == '3'); } // end rep return res; } bool is_multiple_three(string s){ int n = s.length(); int res = 0; rep (i, n){ res += (int)(s[i] - '0'); } // end rep return (res % 3 == 0); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); ll A, B; cin >> A >> B; for (ll i = A; i <= B; ++i){ string s = ll2s(i); if (is_in_three(s) || is_multiple_three(s)) cout << s << endl; } // end for return 0; }