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import sys
for n in sys.stdin.readlines():
    n = int(n)
    if n==1:
        print 1
    else:
        print 2*(n-1)

Success #stdin #stdout 0.02s 6360KB

stdin

stdout

https://ideone.com/iZwou

language:

Python (cpython 2.7.16)

created:

visibility:

public

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