x = 20
while x % 20 == 20:
if x % 20 == 0 and x % 19 == 0 and x % 18 == 0 and x % 17 == 0 and x % 16 == 0 and x % 15 == 0 and x % 14 == 0 and x % 13 == 0 and x % 12 == 0 and x % 11 == 0:
print x
else:
x = x + 20
print x
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