import sys


def method1(a, b):
    s = 0
    aa = list()
    bb = list()
    ss = list()
    while True:
        ss.append(s)
        aa.append(a)
        bb.append(b)
        if a == 0:
            break
        s = s if a % 2 == 0 else s + b
        a = a // 2
        b = b * 2

    len_a = len(str(aa[0])) + 1
    len_b = len(str(bb[-1])) + 1
    pattern = '{{:>{}}} \u2A2F {{:<{}}} \u2192  {{}}'.format(len_a, len_b)

    for i in range(len(aa)):
        if i == 0 or ss[i] != ss[i-1]:
            print(pattern.format(aa[i], bb[i], ss[i]))
        else:
            print(pattern.format(aa[i], bb[i], ''))


def method2(a, b):
    s = a * b
    pattern = '{{:>{}}}'.format(len(str(s)))
    bb = list(reversed(str(b)))
    zz = list()
    for i, _b in enumerate(bb):
        zz.append('{}{}'.format(a * int(_b), ' '*i))

    print(pattern.format(a))
    print(pattern.format(b))
    print('='*len(str(s)))
    for z in zz:
        print(pattern.format(z))

    print('='*len(str(s)))
    print(pattern.format(s))


def main():
    if len(sys.argv) < 3:
        print("blablabla argv")
        exit(1)

    try:
        a = int(sys.argv[1])
        b = int(sys.argv[2])
    except ValueError:
        print("blablabla value")
        exit(1)
    else:
        method1(a, b)
        print()
        print('#'*80)
        print()
        method2(a, b)

if __name__ == "__main__":
    main()