main.py

import sys


def solve(data: str) -> str:
    tokens = list(map(int, data.split()))
    if not tokens:
        return ""
    it = iter(tokens)
    days = next(it)
    stock = next(it)
    threshold = next(it)
    support = next(it)
    support_count = 0
    lowest_stock = 10 ** 18
    lowest_day = 1
    for day in range(1, days + 1):
        produce = next(it)
        consume = next(it)
        damage = next(it)
        stock += produce - consume - damage
        if stock < lowest_stock:
            lowest_stock = stock
            lowest_day = day
        if stock < threshold:
            stock += support
            support_count += 1
    return "\n".join(
        [
            f"final_stock={stock}",
            f"support_count={support_count}",
            f"lowest_stock={lowest_stock} day={lowest_day}",
        ]
    )


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