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Given a word that contains only two kinds of characters, either ‘T’ or ‘F’. Write a program to change all the ‘T’s with the digit 1 and all the ‘F’s with the digit 0.
Example 1
Input
TFT
Output
101
Example 2
Input
TTTFF
Output
11100
Example 3
Input
FFTF
Output
0010
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