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A 3xx3 matrix A, with 1st row elements a...

A `3xx3` matrix A, with 1st row elements as 2,-1,-1 respectively, is modified as below to get another matrix B.
`R_1` elements of A go to `R_3` of matrix C
`R_2` elements of A go to `R_1` of matrix C
`R_2` elements of A to `R_1` of matrix C
`R_3` elements of A go to `R_2` fo matrix C
Now, below operations are done on C as follow,
`C_1` elements of C go to `C_3` of B
`C_2` elements of C go to `C_1` of B
`C_3` elements of C go to `C_2` of B
It is found that A = B, then

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