#include<stdio.h>
int isprime(int x)
{
	int i;
	if(x == 0 || x == 1)
		return 0;
	for(i=2;i<x;i++)
	{
		if(x%i == 0)
			return 0;
	}
	return 1;
}

int main()
{
	int n,m,i,j;
	printf("Enter the value of n: ");
	scanf("%d",&n);
	printf("Enter the value of m: ");
	scanf("%d",&m);

	if(n%2 == 1)
		n=n+1;

	if(n < 2)
		n=4;

	for(i=n;i<=m;i+=2)
	{
		for(j=2;j<i;j++)
		{
			if(isprime(j) && isprime(i-j))
			{
				printf("%d = %d + %d\n",i,j,i-j);
				break;
			}
		}
	}
}