int main()
{
	int a[4],i,j,temp;
	char b[4]={'z','q','s','l'},t;
	for (a[0]=10;a[0]<=50;a[0]=a[0]+10)
	{
		for (a[1]=10;a[1]<=50;a[1]=a[1]+10)
			for (a[2]=10;a[2]<=50;a[2]=a[2]+10)
				for (a[3]=10;a[3]<=50;a[3]=a[3]+10)
				{
					if (((a[0]+a[1])==(a[2]+a[3]))&&((a[0]+a[3])>(a[1]+a[2]))&&((a[0]+a[2])<a[1])&&(a[0]!=a[1])&&(a[0]!=a[2])&&(a[0]!=a[3])&&(a[1]!=a[2])&&(a[1]!=a[3])&&(a[2]!=a[3]))
					{
						for (i=0;i<4;i++)
						{
							for (j=0;j<4-i-1;j++)
							{
								if (a[j]<a[j+1])
								{
									temp=a[j];
									t=b[j];
									a[j]=a[j+1];
									b[j]=b[j+1];
									a[j+1]=temp;
									b[j+1]=t;
								}
							}
						}
						for (i=0;i<4;i++)
							cout<<b[i]<<' '<<a[i]<<endl;

					}

				}
	}
	return 0;
}