Five
Execution time limit is 1 second
Runtime memory usage limit is 128 megabytes
Find the number of positive integers from l to r (inclusive) which do not contain the digit 5 in their entry.
Input
Two numbers l and r (1 ≤ l ≤ r ≤ 10^5).
Output
Print the amount of required numbers.
Examples
Input #1
Answer #1
Input #2
Answer #2
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