====== 10 隻青蛙 ======
<code>
[jonathan@c2q-q9400 ~]$ perl math02.pl 10
It should move [120] steps!
        0:      [1111111111-0000000000]
        1:      [111111111-10000000000]
        2:      [11111111101-000000000]
        3:      [111111111010-00000000]
        4:      [1111111110-0100000000]
        5:      [11111111-010100000000]
        6:      [1111111-1010100000000]
        7:      [111111101-10100000000]
        8:      [11111110101-100000000]
        9:      [1111111010101-0000000]
        10:     [11111110101010-000000]
        11:     [111111101010-01000000]
        12:     [1111111010-0101000000]
        13:     [11111110-010101000000]
        14:     [111111-01010101000000]
        15:     [11111-101010101000000]
        16:     [1111101-1010101000000]
        17:     [111110101-10101000000]
        18:     [11111010101-101000000]
        19:     [1111101010101-1000000]
        20:     [111110101010101-00000]
        21:     [1111101010101010-0000]
        22:     [11111010101010-010000]
        23:     [111110101010-01010000]
        24:     [1111101010-0101010000]
        25:     [11111010-010101010000]
        26:     [111110-01010101010000]
        27:     [1111-0101010101010000]
        28:     [111-10101010101010000]
        29:     [11101-101010101010000]
        30:     [1110101-1010101010000]
        31:     [111010101-10101010000]
        32:     [11101010101-101010000]
        33:     [1110101010101-1010000]
        34:     [111010101010101-10000]
        35:     [11101010101010101-000]
        36:     [111010101010101010-00]
        37:     [1110101010101010-0100]
        38:     [11101010101010-010100]
        39:     [111010101010-01010100]
        40:     [1110101010-0101010100]
        41:     [11101010-010101010100]
        42:     [111010-01010101010100]
        43:     [1110-0101010101010100]
        44:     [11-010101010101010100]
        45:     [1-1010101010101010100]
        46:     [101-10101010101010100]
        47:     [10101-101010101010100]
        48:     [1010101-1010101010100]
        49:     [101010101-10101010100]
        50:     [10101010101-101010100]
        51:     [1010101010101-1010100]
        52:     [101010101010101-10100]
        53:     [10101010101010101-100]
        54:     [1010101010101010101-0]
        55:     [10101010101010101010-]
        56:     [101010101010101010-01]
        57:     [1010101010101010-0101]
        58:     [10101010101010-010101]
        59:     [101010101010-01010101]
        60:     [1010101010-0101010101]
        61:     [10101010-010101010101]
        62:     [101010-01010101010101]
        63:     [1010-0101010101010101]
        64:     [10-010101010101010101]
        65:     [-01010101010101010101]
        66:     [0-1010101010101010101]
        67:     [001-10101010101010101]
        68:     [00101-101010101010101]
        69:     [0010101-1010101010101]
        70:     [001010101-10101010101]
        71:     [00101010101-101010101]
        72:     [0010101010101-1010101]
        73:     [001010101010101-10101]
        74:     [00101010101010101-101]
        75:     [0010101010101010101-1]
        76:     [001010101010101010-11]
        77:     [0010101010101010-0111]
        78:     [00101010101010-010111]
        79:     [001010101010-01010111]
        80:     [0010101010-0101010111]
        81:     [00101010-010101010111]
        82:     [001010-01010101010111]
        83:     [0010-0101010101010111]
        84:     [00-010101010101010111]
        85:     [000-10101010101010111]
        86:     [00001-101010101010111]
        87:     [0000101-1010101010111]
        88:     [000010101-10101010111]
        89:     [00001010101-101010111]
        90:     [0000101010101-1010111]
        91:     [000010101010101-10111]
        92:     [00001010101010101-111]
        93:     [0000101010101010-1111]
        94:     [00001010101010-011111]
        95:     [000010101010-01011111]
        96:     [0000101010-0101011111]
        97:     [00001010-010101011111]
        98:     [000010-01010101011111]
        99:     [0000-0101010101011111]
        100:    [00000-101010101011111]
        101:    [0000001-1010101011111]
        102:    [000000101-10101011111]
        103:    [00000010101-101011111]
        104:    [0000001010101-1011111]
        105:    [000000101010101-11111]
        106:    [00000010101010-111111]
        107:    [000000101010-01111111]
        108:    [0000001010-0101111111]
        109:    [00000010-010101111111]
        110:    [000000-01010101111111]
        111:    [0000000-1010101111111]
        112:    [000000001-10101111111]
        113:    [00000000101-101111111]
        114:    [0000000010101-1111111]
        115:    [000000001010-11111111]
        116:    [0000000010-0111111111]
        117:    [00000000-010111111111]
        118:    [000000000-10111111111]
        119:    [00000000001-111111111]
        120:    [0000000000-1111111111]

</code>