Problem1660--exam2-bitoperation2

1660: exam2-bitoperation2

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 134  Solved: 11
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Description

input a integer, output the integer in which the first '1' is converted to '0'

Input

a integer

Output

the integer in which the first '1' is converted to '0'

Sample Input Copy 

45

Sample Output Copy 

44

Source/Category

146 
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