RU_0 BU_1 LU_1 FU_0 RU_0 BU_0 LU_0
FU_0 RU_1 BU_2 LU_1 FU_0 RU_0 BU_0
LU_0 FU_1 RU_1 BU_1 LU_1 FU_1 RU_0
BU_0 LU_1 FU_1 RU_1 BU_1 LU_1 FU_0
RU_0 BU_1 LU_2 FU_1 RU_0 BU_0 LU_0
FU_0 RU_1 BU_1 LU_0 FU_0 RU_0 BU_0