H - 24 Game

Little X used to play a card game called "24 Game", but recently he has found it too easy. So he invented a new game.

Initially you have a sequence of n integers: 1, 2, ..., n. In a single step, you can pick two of them, let's denote them a and b, erase them from the sequence, and append to the sequence either a + b, or a - b, or a × b.

After n - 1 steps there is only one number left. Can you make this number equal to 24?



#include <cstdio>
#include <cmath>
#include <cstring>
#include <string>
#include <algorithm>
#include <iostream>
#include <queue>
#include <Map>
#include <set>
#include <vector>
using namespace std;

int main()
{
	int t,i,n;
	cin>>t;
	
	if (t<=3)
	{
		printf("NO\n");
	}
	else
		if (t==4)
		{
			printf("YES\n");
			printf("2 * 4 = 8\n");
			printf("3 * 8 = 24\n");
			printf("1 * 24 = 24\n");
		}
		else 
			if (t==5)
			{
			
					printf("YES\n");
				printf("5 - 2 = 3\n");
				printf("3 + 3 = 6\n");
				printf("4 * 6 = 24\n");
				printf("1 * 24 = 24\n");
			}
			
			else 
			if (t>=6)
			{
			
					printf("YES\n");
				printf("6 - 5 = 1\n");
				printf("1 - 1 = 0\n");
				for (i=7;i<=t;i++)
				{
					printf("0 * %d = 0\n",i);
				}
				printf("2 * 3 = 6\n");
				printf("4 * 6 = 24\n");
				printf("0 + 24 = 24\n");
			}
			

			return 0;
			
}


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