#include<iostream>
using namespace std;
void hanoi(int n,char a,char b,char c) {
	if(n==1)
		cout<<n<<" "<<a<<" "<<c<<endl;
	else {
		hanoi(n-1,a,b,c);
		cout<<n<<" "<<a<<" "<<c<<endl;
		hanoi(n-1,b,a,c);
	}
}
int main() {
	int n;
	cin>>n;
	hanoi(n,'A','B','C');
	while(true) cout<<2;
	return 0;
}

这段代码到底会不会死循环？（不按照评测机时间/空间判断）