Description: Animal world always makes a cheetah run with speed and beauty. That day, the cheetah eye on a wild boar, and now
To catch the color because the cheetah is well protected, so the boar did not find cheetah. Cheetah and wild boar in the same line,
Their coordinates are x and y, x is less than or equal y,.
Now there are two cheetah run method:
1 running a grid, that is, from x to x 1 or x-1
2 run double, that is, from x to 2* x.
Now find at least a few steps you catch wild boar.
★ data input
Line 1 input is given two positive integers x, y (0 <x <= y <= 100000), respectively, the coordinates of the cheetah and wild boar coordinates.
★ data output
Only one line of output, given the least number of steps.
Input Example
Example Output
5174
朗读
显示对应的拉丁字符的拼音
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liebao.cpp
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