Crypto Crypto Japanese Cave

Rules:

Place the numbers from 1 to 9 exactly once in every row and column.

Shade some cells such that all unshaded cells are orthogonally connected, and all orthogonally connected groups of shaded cells touch the edge of the grid.

Clues outside the grid indicate the sums of connected groups of either shaded or unshaded numbers in the respective row or column, in order, where numbers in cells with the opposite shading serve as delimiters between groups. All the columns are for one of either shaded or unshaded, and all of the rows are for whichever type of shading the columns is not.

The letters A to J replace the numbers 0 to 9, and no two letters may replace the same number. However, the given letters are all incorrect, and must first be replaced with letters that come one before or one after alphabetically. For all clues, none may have a leading zero.