1X1111122111X120
1X1111222211XX20
121111121211X120
121111221111XX20
1X12111X1111XX20
1X12112X1211X120
1212111X2211XX20
1212112X2111X120
XX11112211112120
X211111221112X20
XX12111X22112120
X212112X12112X20
2X1X111112111X20
2X1X112121111X20
221X111111111120
221X112122111120
