Problem hidden
This problem was hidden by Editorial Board member probably because it has incorrect language version or invalid test data, or description of the problem is not clear.

EIUFRIEN -


Added by:Ha Minh Ngoc
Date:2015-05-28
Time limit:1s
Source limit:50000B
Memory limit:256MB
Cluster: Pyramid (Intel PIII 733 MHz)
Languages:
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