Block

2 LDR of ID 9, 2 LDR of ID 6, 2 LDR of ID 1, 2 LDR of ID 3, 2 LDR of ID 8, 2 LDR of ID 7, 2 LDR of ID 2, 2 LDR of ID 5, 2 LDR of ID 4