Twenty Four Seven 2-by-2

Fill some cells of the 5×5 grid below with numbers so that:

• The grid contains exactly one 1, two 2s, three 3s, four 4s and five 5s (15 numbers in total). Every other cell stays empty.
• Every row and every column contains exactly 3 numbers, and those 3 numbers sum to 11.
• Every 2×2 block of cells contains at least one empty cell.
• A number outside the grid is the first number you see when you look into that row or column from that side. Where there is no number outside the grid, that view gives no information.

The five clues are:

• Top of column 3: 2. Top of column 4: 5.
• Left of row 2: 1. Left of row 5: 2.
• Bottom of column 2: 5.

(Rows are numbered 1 to 5 from top to bottom, and columns 1 to 5 from left to right.)

Answer format: read the main diagonal of the completed grid, from the top-left cell (row 1, column 1) to the bottom-right cell (row 5, column 5), as a 5-digit number, writing 0 for each empty cell. For example, a diagonal holding 2, empty, 3, 4, empty would be read as 20340. Submit this number as a single integer.