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- Spring is interesting season of year. Chef is thinking about different things, but last time he thinks about interesting game - "Strange Matrix".
- Chef has a matrix that consists of n rows, each contains m elements. Initially, the element aij of matrix equals j. (1 ≤ i ≤ n, 1 ≤ j ≤ m).
- Then p times some element aij is increased by 1.
- Then Chef needs to calculate the following:
- For each row he tries to move from the last element (with number m) to the first one (with the number 1).
- While staying in aij Chef can only move to aij - 1 only if aij - 1 ≤ aij.
- The cost of such a movement is aij - aij - 1.
- Otherwise Chef can't move and lose (in this row).
- If Chef can move from the last element of the row to the first one, then the answer is the total cost of all the movements.
- If Chef can't move from the last element of the row to the first one, then the answer is -1.
- Help Chef to find answers for all the rows after P commands of increasing.
- Input
- The first line contains three integers n, m and p denoting the number of rows, the number of elements a single row and the number of increasing commands.
- Each of next p lines contains two integers i and j denoting that the element aij is increased by one.
- Output
- For each row in a single line print the answer after the P increasing commands.
- Constraints
- 1 ≤ n, m, p ≤ 10 ^ 5
- 1 ≤ i ≤ n
- 1 ≤ j ≤ m
- Example
- Input:
- 4 4 6
- 2 2
- 3 2
- 3 2
- 4 3
- 4 4
- 4 3
- Output:
- 3
- 3
- -1
- 4
- Explanation
- Here is the whole matrix after P commands:
- 1 2 3 4
- 1 3 3 4
- 1 4 3 4
- 1 2 5 5
- Explanations to the answer:
- The first line is without changes: 4-3=1, 3-2=1, 2-1=1. answer = 3.
- The second line: 4-3=1, 3-3=0, 3-1=2. The answer is 3.
- The third line: 4-3=1, 3-4=-1, Chef can't move to the first number here. Therefore, the answer is -1.
- The fourth line: 5-5=0, 5-2=3, 2-1=1. The answer is 4.
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