#include <unistd.h>

void	ft_putchar(char c)
{
	static char tab[255];
	int	i;

	i = 0;
	while (tab[i])
	{
		if (tab[i] == c)
			return ;
		i++;
	}
	write(1, &c, 1);
	tab[i] = c;
}

int	main(int argc, char **argv)
{
	if (argc != 3)
		return (0);
	int	i;
	int	j;

	i = 0;
	while (argv[1][i])
	{
		j = 0;
		while (argv[2][j])
		{
			if (argv[1][i] == argv[2][j])
			{
				ft_putchar(argv[2][j]);
				break ;
			}
			j++;
		}
		i++;
	}
	return (0);
}