Here is a very intellegent blind man. He was asked to do the following problem and he did it. Can you do it? Of course you have to assume that you are blind too!

Here is the problem-
On a table 100 coins have been placed. 10 of them are showing heads while 90 others are showing tails(none of the coins is standing). A blind man is told to divide the 100 coins into two groups such that the number of coins showing heads in both the groups is the same. The blind man thinks for a short while and says "I see...." and does the job. How does he do it?

Hints:
1. The no. of coins in the two groups need not be the same.
2. The coins can be flipped.

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