function! s:output()
  let this = {'lines': []}

  function! this.append(line) abort
    call add(self.lines, a:line)
  endfunction

  function! this.build() abort
    return join(self.lines, "\n")
  endfunction

  return this
endfunction

function! s:main(input) abort
  let o = s:output()

  let [a, b] = split(a:input[0], ' ')
  let a_i = len(a) == 1 ? str2nr(a) : 100
  let b_i = len(b) == 1 ? str2nr(b) : 100
  let r = 'P'
  if a_i < 2 || b_i < 2
    let r = 'S'
  endif
  if (a_i == 2 && b_i == 2) || (a_i == 0 && b_i == 0)
    let r = 'E'
  endif

  call o.append(r)
  return o.build()
endfunction

let s:input = getline(1, '$')
enew
put =s:main(s:input)
2,$print