Problem 1001 a<= b?

sujiao | 2015-09-12 20:04:33Author
a<= b?
admin | 2015-09-12 20:08:38# 1
1004£¿
sujiao | 2015-09-12 20:10:53# 2
yes
admin | 2015-09-12 20:11:08# 3
yes
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