1211X21112112X22
121XXX111X112222
X211X2111X112222
X21XXX1112112X22
1211XX1112X12222
1211X2111XX12222
121XXX1112X12X22
121XX2111XX12X22
X211XX111XX12X22
X211X21112X12X22
X21XXX111XX12222
X21XX21112X12222
1211XX111X212X22
121XX21112212222
X211XX1112212222
X21XX2111X212X22
