You are given a matrix of rows and
columns. All elements of the matrix
are by their absolute value smaller than or equal to
.
You may perform the following operations:
Operation | Notation | Example |
---|---|---|
Rotate |
rotR |
rotR |
Rotate |
rotS |
rotS |
Multiply all elements in the if and only if none of them were multiplied before. |
negR |
negR |
Multiply all elements in the if and only if none of them were multiplied before. |
negS |
negS |
Using a limited number of these operations, you need to maximize the sum of all the elements of the matrix.
Input Specification
The first line of input contains two integers and
, number
of rows and columns.
The next lines contain
integers each. All integers are by their absolute
value smaller than
.
Output Specification
The first line of output should contain two integers, the maximal sum
obtainable and the number of operations used. We shall call this number .
The next lines should contain any sequence of operations leading to the
sum. Each operation should follow the notation defined in the table below. For
details look at sample test cases.
If the obtained sum is not maximal, one of the elements was multiplied
more than once or the sequence of operations printed does not lead to
the sum, points are awarded.
Otherwise, the number of points depends on the number of operations used
- For
, you are awarded
of points allocated to that test case
- For
, you are awarded
of points allocated to that test case
- For
, you are awarded
points for that test case
Sample Input 1
3 4
1 -2 5 200
-8 0 -4 -10
11 4 0 100
Sample Output 1
345 2
rotS 2 1
negR 2
Sample Input 2
3 3
8 -2 7
1 0 -3
-4 -8 3
Sample Output 2
34 4
rotR 1 1
rotS 3 1
negR 2
negR 3
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