CF572A Arrays
Description
You are given two arrays $ A $ and $ B $ consisting of integers, sorted in non-decreasing order. Check whether it is possible to choose $ k $ numbers in array $ A $ and choose $ m $ numbers in array $ B $ so that any number chosen in the first array is strictly less than any number chosen in the second array.
Input Format
The first line contains two integers $ n_{A},n_{B} $ ( $ 1
Output Format
Print "YES" (without the quotes), if you can choose $ k $ numbers in array $ A $ and $ m $ numbers in array $ B $ so that any number chosen in array $ A $ was strictly less than any number chosen in array $ B $ . Otherwise, print "NO" (without the quotes).
Explanation/Hint
In the first sample test you can, for example, choose numbers 1 and 2 from array $ A $ and number 3 from array $ B $ (1 < 3 and 2 < 3).
In the second sample test the only way to choose $ k $ elements in the first array and $ m $ elements in the second one is to choose all numbers in both arrays, but then not all the numbers chosen in $ A $ will be less than all the numbers chosen in $ B $ : .