#include<iostream>
#include<vector>
#include<sstream>
int main(){

	int numberOfInstructions, typeOfInstruction, number;
	std::vector<int> stack;
	std::stringstream result;	
	std::cin >> numberOfInstructions;
	for(int counter = 0; counter < numberOfInstructions; counter ++){
		std::cin >> typeOfInstruction;
		if(typeOfInstruction == 1){
			std::cin >> number;
			stack.push_back(number);
		}
		if(typeOfInstruction == 2)
			if(stack.size() > 0)
				stack.pop_back();
		if(typeOfInstruction == 3){
			std::cin >> number;
			bool isEmpty = true;
			for(unsigned counter = 0; counter < stack.size(); counter ++)
				if(stack[counter] <= number){
					result << stack[counter] << " ";
					isEmpty = false;
				}
			if(isEmpty)
				result << "Empty\n";			
			else
				result << "\n";
			
		}
	}
	std::cout << result.str();
	return 0;
}