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xa=-2
਍礀愀㴀㈀ഀഀ
xb=2
਍礀戀㴀ⴀ㄀ഀഀ
from math import*
਍愀戀㴀猀焀爀琀 ⠀⠀砀愀ⴀ砀戀⤀⨀⠀砀愀ⴀ砀戀⤀⬀⠀礀愀ⴀ礀戀⤀⨀⠀礀愀ⴀ礀戀⤀⤀ഀഀ
print ab
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