# 第7课 泉州故事阅读累计
# 天数为非负整数；第day天读day页是本课模拟规则。
days = 7
total = 0
for day in range(1, days + 1):
    total = total + day
    print("第", day, "天累计", total, "页")
print("总阅读量", total, "页")