1211111112211112
121111X112221212
X211X1X112211212
X211X11112221112
X2111X1112211212
X22111X112211112
1211XXX112211112
X2111XX112221112
1221X11112211212
X221111112221212
1211XX1112221212
1221X1X112221112
12211XX112211212
12211X1112221112
X221XXX112221212
X221XX1112211112
