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Time Limit: 3 s Memory Limit: 1024 MB Total points: 100 Difficulty: [show]

#6187. Digit Sum Problem

统计

对于非负整数 $x$,令 $f(x)$ 和 $g(x)$ 分别表示 $x$ 在二进制和三进制下的各位数字之和。

给定 $n, a, b, c$,计算 $$\left( \sum_{i=1}^{n} a^i b^{f(i)} c^{g(i)} \right) \pmod{998244353}$$

输入格式

第一行包含 $n, a, b, c$ ($1 \le n \le 10^{13}, 1 \le a, b, c < 998244353$)。

输出格式

一个整数,即答案。

样例

样例输入 1

123456 12345 234567 3456789

样例输出 1

664963464

样例输入 2

9876543210987 12816 837595 128478

样例输出 2

7972694

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