#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main()
{
string str = "247+38";
int pos = str.find('+');
string s1 = str.substr(0, pos);
string s2 = str.substr(pos + 1, sizeof(str));
cout << s1 << endl;
cout << s2 << endl;
}
//结果
//247
//38