/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Expression[] exps = new Expression[100];
		for (int i = 0; i < exps.length; ++i)
		{
			exps[i] = null;
		}
 
		for (int a = 2; a <= 9; ++a)
		{
			for (int b = 2; b <= 9; ++b)
			{
				for (int c = 2; c <= 9; ++c)
				{
					Expression exp = new Expression(a, b, c);
					int index = exp.index;
					exps[index] = simply(exps[index], exp);
				}
			}
		}
 
		for (int i = 0; i < exps.length; ++i)
		{
			if (exps[i] != null)
			{
				System.out.println(exps[i]);
				if (exps[i].result % 5 == 0)
				{
					System.out.println();
				}
			}
		}
 
 
	}
 
	static Expression simply(Expression exp1, Expression exp2)
	{
		if (exp1 == null) return exp2;
		if (exp2 == null) return exp1;
		return exp1.simple >= exp2.simple ? exp1 : exp2;
	}
 
	static class Expression
	{
		public final int a, b, c, result, simple, index;
		public Expression(int a, int b, int c)
		{
			this.a = a;
			this.b = b;
			this.c = c;
			result = a * b - c;
			index = result + 9;
			simple = (a == b ? 5 : 0)
				   + (a == c ? 1 : 0)
				   + (b == c ? 5 : 0)
				   + (a <= b && b <= c ? 1 : 0)
				   + (a >= b && b >= c ? 1 : 0);
		}
 
		@Override	
		public String toString()
		{
			return a + " x " + b + " - " + c + " = " + result;
		}
	}
}

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