하루성장

for i in range(1, 10):

    for j in range(1, 10):

        print("%d * %d = %d" % (i, j, i * j))

i = 1

j = 1

while i <= 9:

    j = 1

    while j <= 9:

        sol = i * j

        print("%d * %d = %d" % (i, j, sol))

        j = j + 1

    i = i + 1