07. Replace All

#include <iostream>
#include <string>

using namespace std;

int main() {
    string str, oldStr, newStr;
    getline(cin, str);
    getline(cin, oldStr);
    getline(cin, newStr);

    while (str.find(oldStr) != -1) {
        str.replace(str.find(oldStr), oldStr.length(), newStr);
    }

    cout << str << endl;
    return 0;
}