#include <array>
#include <iostream>
#include <sstream>

int main(int argc, char* argv[])
{
	std::array<int, 10> a;
	
	while(--argc)
	{
		int i = 0;
		std::istringstream iss(argv[argc]);
		iss >> i;
		if (iss)
		{
			try 
			{
				a.at(i) = -1;
			}
			catch(std::exception& e) 
			{
				std::cerr << e.what() << std::endl;
			}
			a[i] = -1;
		}
	}
}