55

h = x = 13
while h > 0:
    if h == x or  h == 1: #самый верх и самый низ
        print (' '*(x-h) + ('0'*(2*h-1)))
    elif h <= ((x/2)): # нижняя половина и средняя строчка
        print(' '*(x-h) + '0',end = '') #пробелы и нули в начале строк
        ran = fixran = h - 1
        while ran > 0:
            print(fixran - ran +1, end = '')
            ran -= 1
        ran = fixran -1
        while ran > 0:
            print(ran, end = '')
            ran -= 1
        print ('0') #нули в конце строк
    else: # верхняя половина
        print(' '*(x-h) + '0',end = '')
        ran = fixran = x - h
        while ran > 0:
            print(fixran - ran +1, end = '')
            ran -= 1
        ran = fixran -1
        print (str(fixran) * (2*h - 2*ran -4) , end = '')
        while ran > 0:
            print(ran, end = '')
            ran -= 1
        print ('0')
    h -=1