#!/usr/bin/env python3

import sys, re


if __name__ == '__main__':
    lines = [line.strip('\n') for line in open(sys.argv[1])]
    times = [int(n) for n in re.findall(r'\d+', lines[0])]
    records = [int(n) for n in re.findall(r'\d+', lines[1])]

    # challenge 1
    res1 = 1
    for i in range(len(times)):
        count = 0
        for t in range(times[i]):
            if t * (times[i] - t) > records[i]: count += 1
        res1 *= count

    res1 = str(res1)
    print(f"challenge 1:\n{res1}\n")

    # challenge 2
    time = int(''.join([str(i) for i in times]))
    record = int(''.join([str(i) for i in records]))
    res2 = 0
    for t in range(time):
        if t * (time - t) > record:
            mint = t
            break
    res2 = str(time - 2 * mint + 1)
    print(f"challenge 2:\n{res2}\n")