def is_safe(report):
    increasing = all(report[i] <= report[i+1] for i in range(len(report)-1))
    decreasing = all(report[i] >= report[i+1] for i in range(len(report)-1))
    
    if not (increasing or decreasing):
        return False

    for i in range(len(report) - 1):
        diff = abs(report[i] - report[i+1])
        if not (1 <= diff <= 3):
            return False
    return True

def solve_part1(reports):
    safe_count = 0
    for report in reports:
        if is_safe(report):
            safe_count += 1
    return safe_count

def solve_part2(reports):
    safe_count = 0
    for report in reports:
        if is_safe(report):
            safe_count += 1
            continue

        for i in range(len(report)):
            temp_report = report[:i] + report[i+1:]
            if is_safe(temp_report):
                safe_count += 1
                break
    return safe_count


with open("./input.txt", "r") as f:
    reports = []
    for line in f:
        reports.append(list(map(int, line.strip().split())))

result1 = solve_part1(reports)
print(result1)

result2 = solve_part2(reports)
print(result2)