#include <iostream>
#include <vector>

using namespace std;

int main()
{
	int length;
	cin >> length;
	while(length != 0)
	{
		vector<int> lam;
		bool correct = true;
		for(int i = 0; i < length; i++)
		{
			int input;
			cin >> input;
			if(i != 0)
			{
				if(input < lam.back())
				{
					correct = false;
				}
			}
			lam.push_back(input);
		}

		if(correct)
		{
			while(lam.size() > 0)
			{
				cout << lam.back() << endl;
				lam.pop_back();
			}
		}
		else
		{
			cout << "INCORRECT SEQUENCE" << endl;
		}

		cin >> length;
		if(length == 0) break;
	}
}