Untitled

#include <iostream>
#include <string>

using namespace std;

int main()
{
	string s;
	cin >> s;
	
	for (int i = 0; i < s.length(); i++) {
		if (s[i] == '2' || s[i] == '3') {
			s[i] = '5';
		}
	}
	cout << s;
}