int main()
{
    int z , q, s, l;
	z = 10;
	int a , b, c, d;
	char x1, x2, x3, x4;
	int y1 , y2, y3, y4;
    for (a=10; a<=50 ; a = a + 10)
	{
	    q=10;
		for (b=10; b<=50;b = b + 10)
		{
			s = 10;
			for(c=10; c<=50; c = c +10)
			{
				l = 10;
				for(d = 10; d <= 50; d = d +10)
				{
					if (z != q && q != s && s != l && z+q == s+l && z+l > s+q && z+s < q)  
					{
                        y1=z;
						x1='z';
						if (y1 < q)
						{   y2 =q;
						    x2 = 'q';
						}
						else
						{
						    y1 = q;
							x1 = 'q';
							y2 = z;
							x2 = 'z';
						}
						if (y2 < s)
						{	
							y3 =s;
							x3 = 's';
						}
						else 
						{
						    if (s>y1)
							{
							    y3= y2;
								x3 = x2;
								y2 = s;
								x2 = 's';
							}
							else 
							{
							    y3 = y2;
								x3 = x2;
								y2 = y1;
								x2 = x1;
								y1 = s;	
								x1 = 's';
							}

						}
						if (y3 < l)
						{
							y4 = l;
						    x4 = 'l';
						}
						else 
						{
							y4 =y3;
							x4 = x3;
							if (l > y2)
							{
								y3 =l;
							    x3 = 'l';
							}
							else 
							{
							    y3 =y2;
								x3 =x2;
								if (l > y1)
								{
									y2 =l;
								    x2 = 'l';
								}
								else 
								{
									y2 =y1;
									x2 = x1;
								    y1= l;
									x1='l';
								}
							}

						}
						cout << x4 << " " << y4 << endl;
						cout << x3 << " " << y3 << endl;
						cout << x2 << " " << y2 << endl;
						cout << x1 << " " << y1 << endl;
						break;
					}
					else
						l = l + 10;
				}
				s = s + 10;
			}
			q = q + 10;
		}
		z = z + 10;
	}
	return 0;
}