XX121X2211X12X2M
XX12122212212X2M
XX222X2212212X2M
XX22222211X12X2M
X2122X2212X12X2M
X212222211212X2M
X2221X2211212X2M
X222122212X12X2M
2X122X2211212X2M
2X12222212X12X2M
2X221X2212X12X2M
2X22122211212X2M
22121X2212212X2M
2212122211X12X2M
22222X2211X12X2M
2222222212212X2M
