Question: Write a program that reads four integers and prints two pairs if the input consists of two matching pairs (in some order) and not two

Write a program that reads four integers and prints “two pairs” if the input consists of two matching pairs (in some order) and “not two pairs” otherwise. For example,

1 2 2 1 two pairs
1 2 2 3 not two pairs
2 2 2 2 two pairs

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