求救！！

#include <bits/stdc++.h>
using namespace std;
deque<int> cow;
int id;
int main()
{
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		char a,b;
		cin>>a>>b;
		id++;
		//print();
		if((a=='A')&&(b=='L')) cow.push_front(id);
		if((a=='A')&&(b=='R')) cow.push_back(id);
		if((a=='D')&&(b=='L'))
		{
			int k;
			cin>>k;
			for(int j=1;j<=k;j++)
				cow.pop_front();
		}
		if((a=='D')&&(b=='R'))
		{
			int k;
			cin>>k;
			for(int j=1;j<=k;j++)
				cow.pop_back();
		}
	}
	while(!cow.empty())
	{
		cout<<cow.front()<<"\n";
		cow.pop_front();
	}
}