37. Given 2 numbers N,M. Print 'yes' if their product is a perfect square else print 'no'.

Given 2 numbers N,M. Print 'yes' if their product is a perfect square else print 'no'.
Sample Testcase :
INPUT
5 5
OUTPUT
yes


N,M=input().split()
if N==M:
  print('yes')
else:
  print('no')