(define (System.out.println x)
  (begin
    (display x)
    (newline)
  )
)

(define (ver2num x)
  (let loop(
            (i 0)
            (RetVal 0)
           )
    (if (= i (length x))
        RetVal
        (if (string=? (list->string (list (list-ref x i))) ".")
            (loop (+ i 1) (* RetVal 1000))
            (loop (+ i 1) (+ (* RetVal 10) (string->number (list->string (list (list-ref x i))))))
        )
    )
  )
)

(let (
      (X (string->list (symbol->string (read))))
      (Y (string->list (symbol->string (read))))
     )
  (if (>= (ver2num X) (ver2num Y))
      (System.out.println "YES")
      (System.out.println "NO")
  )
)