char	*strstr(char *str, char *to_find)
{
	int i;
	int j;

	i = 0;
	j = 0;
	if (!(to_find[j]))
		return (str);
	while (str[i])
	{
		if (str[i] == to_find[0])
		{
			j = 0;
			while (str[i + j] && str[i + j] == to_find[j])
				j++;
			if (to_find[j] == '\0')
				return (&str[i]);
		}
		if (to_find[j] == '\0')
			return (&str[i]);
		i++;
	}
	return (0);
}