void main()  

 { 
 int n,t,f=1,s=0,num;
 printf("enter the num \t:");
 scanf("%d",&n);
 num=n;
 while(num)
 {
	 t=num%10;
	 f=1;
	 while(t)
	 {
		 f=f*t;
		 t--;
	 }
	 s=s+f;
	 num=num/10;
 }
if(n==s)
printf("%d is a strong number",n);
else
printf("%d is not a strong number",n);
}