21212221X2XX1221
X121211121X21221
X1112X2XX11X1221
11X12X1112111221
1111212X2X221221
11112X121X111221
X12121X111XX1221
X1112112111X1221
21212XX2X11X1221
21X12XX111X21221
1111212211XX1221
X1X121212X121221
211122X1X1221221
21212212X12X1221
112121X12X2X1221
X111212X22XX1221
