P26050 [AtCoder] Replace Digits
提高-
题目描述

Problem Statement

You have a string S of length N.
Initially, all characters in S are 1s.
You will perform queries Q times.
In the i-th query, you are given two integers L_i, R_i and a character D_i (which is a digit).
Then, you must replace all characters from the L_i-th to the R_i-th (inclusive) with D_i.
After each query, read the string S as a decimal integer, and print its value modulo 998,244,353.

Input

Input is given from Standard Input in the following format:
N Q
L_1 R_1 D_1
:
L_Q R_Q D_Q

Output

Print Q lines.
In the i-th line print the value of S after the i-th query, modulo 998,244,353.

Constraints

  • $1 \leq N, Q \leq 200,000$
  • $1 \leq L_i \leq R_i \leq N$
  • $1 \leq D_i \leq 9$
  • All values in input are integers.

Sample Input 1

8 5
3 6 2
1 4 7
3 8 3
2 2 2
4 5 1

Sample Output 1

11222211
77772211
77333333
72333333
72311333

Sample Input 2

200000 1
123 456 7

Sample Output 2

641437905

Don't forget to take the modulo.

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
8 5 3 6 2 1 4 7 3 8 3 2 2 2 4 5 1
样例输出
11222211 77772211 77333333 72333333 72311333