DE1

ABCD
1 blank
sign
DE1-B1
sign
DE1-C1
sign
DE1-D1
sign
2 DE1-A2
sign
DE1-B2
sign
DE1-C2
sign
DE1-D2
sign
3 blank
sign
blank
sign
DE1-C3
sign
DE1-D3
sign
4 blank
sign
DE1-B4
sign
DE1-C4
sign
DE1-D4
sign
5 DE1-A5
sign
DE1-B5
sign
DE1-C5
sign
DE1-D5
sign
6 DE1-A6
sign
DE1-B6
sign
blank
sign
DE1-D6
sign