program main
  implicit none
  integer::T,A,B,AA,BB
  integer::i,tmp
  read *,T,A,B

  if(MAX(A,B).gt.T) then
     print '(a)', "NO"
     return
  else
    print '(a)', "YES"
  end if

  AA = A-1
  BB = B-1

  do i=1,MIN(AA,BB)
     print '(a)',"^>"
  end do

  if(AA.gt.BB) then
     do i=BB+1,AA
        print '(a)',"^"
     end do
  else
     do i=AA+1,BB
        print '(a)',">"
     end do
  end if

  tmp = T-MAX(AA,BB)-1
  do i=1,tmp/2
     print '(a)',"^"
     print '(a)',"v"
  end do
  if(MOD(tmp,2).eq.1) then
     print '(a)',"^"
     print '(a)',">"
     return
  else
     print '(a)',">^"
     return
  end if
end program main