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Problems

# Even and odd numbers

Given three integers a, b, c. Determine is there among them exist at least one even and at least one odd number.

#### Input

The numbers a, b, c, not exceeding 10000 by absolute value (numbers can be negative).

#### Output

Print "YES" or "NO".

Time limit 1 second
Memory limit 128 MiB
Input example #1
3 4 5
Output example #1
YES

Input example #2
7 7 7
Output example #2
NO