def print_rangoli(size):

    hyphen = '-'
    final_list = []

    for i in range(size, 0 , -1):

        
        temp = [chr(96 + j) for j in range(size,i-1,-1)]
        alphabets = temp + temp[-2::-1]

        final_list.append(str((hyphen *((i -1) * 2))+"-".join(alphabets)+(hyphen *((i -1) * 2))))

    print(*final_list, sep = "\n")
    print(*final_list[-2::-1], sep = "\n")