main.py

import sys


def round_half_up(total: int, count: int) -> int:
    return (2 * total + count) // (2 * count)


def solve(data: str) -> str:
    tokens = list(map(int, data.split()))
    if not tokens:
        return ""
    n = tokens[0]
    values = tokens[1:1 + n]
    total_change = values[-1] - values[0]
    longest = 1
    current = 1
    for index in range(1, n):
        if values[index] > values[index - 1]:
            current += 1
        else:
            current = 1
        if current > longest:
            longest = current
    recent = values[-min(3, n):]
    forecast = round_half_up(sum(recent), len(recent))
    return "\n".join(
        [
            f"total_change={total_change}",
            f"longest_rise={longest}",
            f"forecast={forecast}",
        ]
    )


if __name__ == "__main__":
    sys.stdout.write(solve(sys.stdin.read()).strip())
    sys.stdout.write("\n")