C++ 代码
#include<bits/stdc++.h>
using namespace std;
string s;
int t, f;
void out(int i) {
if (f)putchar('1');
while (~i && s[i] == '1')s[i--]--;
if (!~i)putchar('1'), f = 1;
else s[i]++;
cout << s << '\n';
}
int main() {
for (cin >> t; t, cin >> s; out(31), out(30), f = 0, t--);
return 0;
}