221122XX2XX12X21
221122222XX12221
21X1X2X122212221
2XX1X22122212X21
21X1X21222212X21
X111X2212XX12X21
XX11X2X22XX12121
21X1X22X22212121
XX11X21X2XX12221
21X1122122212X21
2XX112X222212121
2XX1121X22212221
X2X1221122212121
XX1112X12XX12221
XX1112122XX12X21
X11112X22XX12121
X111121X2XX12221
XX11122X2XX12121
X2X122XX22212X21
X2X1222222212221
