'test using input()'
import readline # should not generate a warning since input/raw_input() is used
def f1():
x = input()
print x
def f2():
x = raw_input()
print x
def f3():
'should not generate a warning, since this is not the real input'
__pychecker__ = 'no-shadowbuiltin'
def input(): return 0
x = input()
print x
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