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Problems

Delete digits

Delete digits

Time limit 1 second
Memory limit 128 MiB

One positive integer n is given. Remove from this number all digits 3 and 9, leaving the order of other digits the same.

For example, the number 539013 will be transformed to 501.

Input data

One positive integer n~(1 \le n \le 10^{18}).

Output data

Remove from the number n all digits 3 and 9, keeping the relative order of other digits.

Examples

Input example #1
539013 
Output example #1
501