#include <bits/stdc++.h>
using namespace std;
int main(){
	int l;
	cin >> l;
	int q;
	cin >> q;
	while(q--){
		string cmd;
		cin >> cmd;
		if(cmd[0]=='a'){
			int x;
			cin >> x;
			cout << __builtin_popcount(x) << ' ';
			x^=1<<19;
			for(int i=18; i>=0; i--){
				int yey=x>>i;
				if(yey&1) cout << (yey^1) << ' ';
			}
			cout << endl;
		}
		else if(cmd[0]=='b'){
			int x;
			cin >> x;
			x^=1<<19;
			cout << 20 << ' ';
			for(int i=19; i>=0; i--){
				int yey=x>>i;
				cout << yey << ' ';
			}
			cout << endl;
		}
		else{
			int n;
			cin >> n;
			int x;
			for(int i=0; i<n; i++){
				cin >> x;
			}
			if(x==1) cout << "B" << endl;
			else cout << "A" << endl;
		}
	}
}
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