__________x
____4_____1
____6_____4
____5_____2
____6_____3
__________x
____3_____4
____2_____2
____3_____3
____1_____1
__________x
__________x
____6_____1
____8_____4
____6_____1
____8_____3
____6_____1
__________x
__________x
____11____3
____12____4
____11____2
__________x
____11____1
____11____1 opt.
____14____4
____12____2
____11____1
____13____3
____11____1
____15____4
____14____2
____15____3
____13____1
__________x
__________x
____9_____1
____11____2
____12____3
____13____4
__________x
__________x
