Armstrong Number

An Armstrong number is a number such that the sum of its digits raised to the third power is equal to the number itself.

For example, 371 is an Armstrong number, since 3^3 + 7^3 + 1^3 = 371.

Another example, 153. 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153.

Program to find whether the given number is an Armstrong number or not.

Code

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