int A[6][3];

This is how A is laid out in memory:

    +-----------+
  A:|  A[0][0]  | 
    +-----------+
    +  A[0][1]  +
    +-----------+
    +  A[0][2]  +
    +-----------+
    +  A[1][0]  +
    +-----------+
    +  A[1][1]  +
    +-----------+
    +  A[1][2]  +
    +-----------+
    +  A[2][0]  +
    +-----------+
    +  A[2][1]  +
    +-----------+
    +  A[2][2]  +
    +-----------+
    +  A[3][0]  +
    +-----------+
    +  A[3][1]  +
    +-----------+
    +  A[3][2]  +
    +-----------+
    +  A[4][0]  +
    +-----------+
    +  A[4][1]  +
    +-----------+
    +  A[4][2]  +
    +-----------+
    +  A[5][0]  +
    +-----------+
    +  A[5][1]  +
    +-----------+
    +  A[5][2]  +
    +-----------+

How do you find the position of A[4][2]?