Problem:
Score : 100 points

Problem Statement

Iroha loves Haiku. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order.

To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.

Constraints

1≦A,B,C≦10

Input

The input is given from Standard Input in the following format:

A B C

Output

If it is possible to construct a Haiku by using each of the phrases once, print YES (case-sensitive). Otherwise, print NO.

Sample Input 1

5 5 7

Sample Output 1

YES

Using three phrases of length 5, 5 and 7, it is possible to construct a Haiku.

Sample Input 2

7 7 5

Sample Output 2

NO

Solution in Pascal (FPC 2.6.2) (judge verdict: Accepted)

var
  a,b,c,che5,che7:integer;
begin
  readln(a,b,c);
  if a=5 then che5:=che5+1;
  if a=7 then che7:=che7+1;
  if b=5 then che5:=che5+1;
  if b=7 then che7:=che7+1;
  if c=5 then che5:=che5+1;
  if c=7 then che7:=che7+1;
  if (che5=2) and (che7=1) then writeLN('YES')
                          ELSE WRITELN('NO');
END.