不用快读的话会T一两个点（别问我是怎么知道的
by szkzyc @ 2021-03-25 21:33:17
hacked.
```cpp
#include <bits/stdc++.h>
using namespace std;
int main() {
int n = 1999999;
printf("%d\n", n);
for (int i = 1; i <= 999999; ++i) printf("1 ");
for (int i = 1; i <= 1000000; ++i) printf("2 ");
puts("");
return 0;
}
```
by M_sea @ 2021-03-25 21:37:10