A1-B5-C3-D1
A2-B4-C7-D2
A3-B1-C1-D5
A4-B6-C2-D3
A5-B9-C8-D8
A6-B7-C4-D10
A7-B10-C9-D6
A8-B2-C6-D4
A9-B3-C10-D7
A10-B8-C5-D9