#check amstrong or not
#given input
num = int(input())
for num in range(num,1000):
	summ = 0
	numcp =num
	if(num >= 10 and num < 100):
		while(num > 0):
		    digit = int(num % 10)
		    d = digit * digit
		    summ = summ + d
		    num =int(num/10)
	if (num >= 100 and numm < 1000):
		while(num > 0):
			digit =  int(num%10)
			d == digit *digit * digit
			summ =summ + d
			num = int(num/10)
if (numcp == summ ):
	print(summ,"is a amstrong number")

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MTUz

153