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 if(A.eq.0.and.B.eq.0.and.T.eq.1) then
     print '(a)', "NO"
     return
  else
     print '(a)', "YES"
  end if

  if(T.eq.1) then
     if(A.eq.1.and.B.eq.1) then
        print '(a)',"^>"
     else if(A.eq.1) then
        print '(a)',"^"
     else if(B.eq.1) then
        print '(a)',">"
     end if
     return
  end if

  AA = A-1
  BB = B-1
  if(AA.eq.-1.and.BB.eq.-1) then
     print '(a)',"<v"
     tmp = T-2
  else if(AA.eq.-1) then
     if(BB.eq.0) then
        print '(a)',"v"
     else
        print '(a)',"v>"
     end if
     do i=1,BB-1
        print '(a)',"^"
     end do
     tmp = T-BB-2
  else if(BB.eq.-1) then
     if(AA.eq.0) then
        print '(a)',"<"
     else
        print '(a)',"<^"
     end if
     do i=1,AA-1
        print '(a)',">"
     end do
     tmp = T-AA-2
  else
     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
  end if

  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