OFFSET

Returns a cell range that is a specified number of rows and columns from a cell or range of cells.
H1: =OFFSET(A3, 3, 1) => 7000
H2: =SUM(OFFSET(A3, 3, 1, 1, 4)) => 25300
H3: =SUM(OFFSET(B3:E3, 3, 0)) => 25300
H4: =SUM(OFFSET(E3, 1, -3, 7)) => 39300