python 27行代码已写出并通过所有测试， 如何缩减到20行并保留我的格式。第一个成功运行者并保留大部分我的代码者立即采纳

n=input('Standard game? (y/n): ')
if n=='y':
    r=6;c=7
else:
    r=int(input('r? (2 - 20): '));c=int(input('c? (2 - 20): '))
if c>9 or r>9:
    for i in range(r-1,-1,-1):
        if i<=9:
            print(' '+str(i)+' ',end='')
        else:
            print(str(i)+' ',end='')
        print(' · '*c)
    print('   ',end='')
    for j in range(0,c):
        if j<=9:
            print(' '+str(j)+' ',end='')
        if j>9:
            print(str(j)+' ',end='')
    print('')
if c<9 and r<9:
    for i in range(r-1,-1,-1):
        print(str(i)+' ',end='')
        print('· '*c)
    print('  ',end='')
    for j in range(0,c):
        print(str(j)+' ',end='')
    print('')

n = input('Standard game? (y/n): ')
if n == 'y':r = 6;c = 7
else:r = int(input('r? (2 - 20): '));c = int(input('c? (2 - 20): '))
if c > 9 or r > 9:
    for i in range(r - 1, -1, -1):
        if i <= 9:print(' ' + str(i) + ' ', end='')
        else:print(str(i) + ' ', end='')
        print(' · ' * c)
    print('   ', end='')
    for j in range(0, c):
        if j <= 9:print(' ' + str(j) + ' ', end='')
        if j > 9:print(str(j) + ' ', end='')
    print('')
if c < 9 and r < 9:
    for i in range(r - 1, -1, -1):
        print(str(i) + ' ', end='')
        print('· ' * c)
    print('  ', end='')
    for j in range(0, c):print(str(j) + ' ', end='')
    print('')