def main():
    with open('input.txt', mode='r') as f:
        happy_ticket_count = 0
        total_sum = 0
        total_count = 0
        for line in f:
            s = line.rstrip()
            s = list(map(float, s))
            sum1 = sum(s[:3], 0)
            sum2 = sum(s[3:], 0)
            total_sum += sum1 + sum2
            if sum1 == sum2:
                happy_ticket_count += 1
            total_count +=1

    with open('output.txt', mode='a') as f:
        f.write(str(happy_ticket_count)+'\n')
        f.write((format((total_sum/(total_count*6)), '.2f')))

if __name__ == "__main__":
    main()