import Text.Printf

task bs ns = mapM_ putStrLn
           $ zipWith mkLine (binCounts bs ns) bins
  where
    bins :: [String]
    bins = [printf "(-∞, %v)" $ head bs] <>
           zipWith mkInterval bs (tail bs) <>
           [printf "[%v, ∞)" $ last bs]

    mkLine = printf "%v\t in %s"
    mkInterval = printf "[%v, %v)"

bins1 = [23, 37, 43, 53, 67, 83]
data1 = [ 95, 21, 94, 12, 99, 4,  70, 75, 83, 93, 52, 80, 57
        , 5,  53, 86, 65, 17, 92, 83, 71, 61, 54, 58, 47, 16
        , 8,  9,  32, 84, 7,  87, 46, 19, 30, 37, 96, 6,  98
        , 40, 79, 97, 45, 64, 60, 29, 49, 36, 43, 55]

bins2 = [14, 18, 249, 312, 389, 392, 513, 591, 634, 720]
data2 = [ 445, 814, 519, 697, 700, 130, 255, 889, 481, 122, 932, 77,  323, 525
        , 570, 219, 367, 523, 442, 933, 416, 589, 930, 373, 202, 253, 775, 47
        , 731, 685, 293, 126, 133, 450, 545, 100, 741, 583, 763, 306, 655, 267
        , 248, 477, 549, 238, 62,  678, 98,  534, 622, 907, 406, 714, 184, 391
        , 913, 42,  560, 247, 346, 860, 56,  138, 546, 38,  985, 948, 58,  213
        , 799, 319, 390, 634, 458, 945, 733, 507, 916, 123, 345, 110, 720, 917
        , 313, 845, 426, 9,   457, 628, 410, 723, 354, 895, 881, 953, 677, 137
        , 397, 97,  854, 740, 83,  216, 421, 94,  517, 479, 292, 963, 376, 981
        , 480, 39,  257, 272, 157, 5,   316, 395, 787, 942, 456, 242, 759, 898
        , 576, 67,  298, 425, 894, 435, 831, 241, 989, 614, 987, 770, 384, 692
        , 698, 765, 331, 487, 251, 600, 879, 342, 982, 527, 736, 795, 585, 40
        , 54,  901, 408, 359, 577, 237, 605, 847, 353, 968, 832, 205, 838, 427
        , 876, 959, 686, 646, 835, 127, 621, 892, 443, 198, 988, 791, 466, 23
        , 707, 467, 33,  670, 921, 180, 991, 396, 160, 436, 717, 918, 8,   374
        , 101, 684, 727, 749]