pyramid

#!/usr/bin/env python3.5

import random, sys


def result(x):
    print(x)
    exit()

row, column = 0, 0
# noinspection PyBroadException
try:
    row, column = [int(x) for x in sys.argv[1:]]
except: result('Usage: {} ROW COLUMN, e.g. {} 4 3'.format(*([sys.argv[0]] * 2)))
if column > row: result('COLUMN must be less or equal to ROW')
if row == 1: result(0)
if row == 2: result(0.5)

def r(): return random.randrange(200) + 56

w = [1]

def line():
    spaces = ' ' * ((row - len(w)) * 7)
    print('sum={}'.format(sum(w)), spaces, *['\033[38;2;{};{};{}m[{:_>11}]'.format(r(), r(), r(), i) for i in w])

line()
for i in range(1, row):
    w = [i + 1 for i in [w[0] / 2] + [w[i] / 2 + w[i+1] / 2 for i in range(len(w) - 1)] + [w[-1] / 2]]
    line()
result(w[column - 1] - 1)