(print 
    (concat
        (->string (<= 20 5)) " "
        (->string (<= 3.6 2)) " "
        (->string (<= 1 2.5)) " "
        (->string (<= 5 5)) " "
        (->string (<= 45 45.0)) " "
        (->string (<= 1.1 4.4))))

; #false #false #true #true #true #true