#!/usr/bin/env python3

import sys

if __name__ == '__main__':
    measurements = open(sys.argv[1]).read().strip('\n\n').split('\n')
    meas = [int(i) for i in measurements]

    # challenge 1
    incr = 0
    last = 0
    for i in meas:
        if i > last:
            incr += 1
        last = i
    res1 = str(incr - 1)
    print("challenge 1: " + res1 + "\n")

    # challenge 2
    incr = 0
    first = meas[0]
    second = meas[1]
    third = meas[2]
    last = first + second + third
    for i in meas[3:]:
        first = second
        second = third
        third = i
        nex = first + second + third
        if nex > last:
            incr += 1
        last = nex
    res2 = str(incr)
    print("challenge 2: " + res2 + "\n")