____2_____1 opt.
____4_____3
____4_____3
____4_____3
____2_____1
__________x
____7_____1
____7_____1
____8_____2
____9_____4
____9_____3
____7_____1
____11____3
____12____4
____11____2
____9_____1
__________x
__________x
____11____1
____12____2
____11____1
____13____3
____14____4
__________x
____14____1 opt.
____16____3
____16____3
____16____3
____14____1
__________x
____19____4 opt.
____16____1
____16____1
____16____1
____18____2
____19____3
____7_____4 opt.
____4_____1
____4_____1
____4_____1
____6_____2
____7_____3
