D-6

v-5.3.0
---
1. jump: up to => A_UR, pos-seq=4

	==> done
D-6

v-6.0
---
1. from: A_UR.4 --> A_LR.1

	==> done
D-6

v-6.1
---
1.  A_UR.4 <--> A_LR.1: backward

	==> done
D-6

v-6.2
---
1.  jump: up to => A_LR, pos-seq=4

	==> done
D-6

v-7.0
---
1.  A_LR.4 --> A_LL.4: forward

	==> done
D-6

v-7.1
---
1.  A_LR.4 <-- A_LL.4: back

	==> done
D-6

v-7.2
---
1.  jump: up to => A_LL, pos-seq=4

	==> done