CF122A.Lucky Division
普及/提高-
通过率:0%
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题目描述
Petya loves lucky numbers. Everybody knows that lucky numbers are positive integers whose decimal representation contains only the lucky digits 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not.
Petya calls a number almost lucky if it could be evenly divided by some lucky number. Help him find out if the given number n is almost lucky.
输入格式
The single line contains an integer n (1<=n<=1000) — the number that needs to be checked.
输出格式
In the only line print "YES" (without the quotes), if number n is almost lucky. Otherwise, print "NO" (without the quotes).
输入输出样例
输入#1
47
输出#1
YES
输入#2
16
输出#2
YES
输入#3
78
输出#3
NO
说明/提示
Note that all lucky numbers are almost lucky as any number is evenly divisible by itself.
In the first sample 47 is a lucky number. In the second sample 16 is divisible by 4 .