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 Fortran (gfortran v4.8.4) (judge verdict: Accepted)

program main
implicit none
integer :: a, b, c

read(*,*) a, b, c
if( a==5 ) then
   if( b== 5 ) then
      if( c == 7 ) then
         write(*,*) 'YES'
         stop
      end if
   else if( b == 7 ) then
      if ( c== 5 ) then
         write(*,*) 'YES'
         stop
      end if
   end if
else if( a== 7 ) then
   if( b==5.and.c==5 ) then
      write(*,*) 'YES'
      stop
   end if
end if
write(*,*) 'NO'


end program main