____6_____4 opt.
____3_____1
____3_____1
____3_____1
____5_____2
____6_____3
____1_____1 opt.
____3_____3
____3_____3
____3_____3
____1_____1
__________x
____6_____1
____6_____1
____7_____2
____8_____4
____8_____3
____6_____1
____10____3
____11____4
____10____2
____8_____1
__________x
__________x
____10____1
____11____2
____10____1
____12____3
____13____4
__________x
____18____4 opt.
____15____1
____15____1
____15____1
____17____2
____18____3
____13____1 opt.
____15____3
____15____3
____15____3
____13____1
__________x
