121X11X122X12122
X21X11X122XX2122
221X11X122X12122
121XX1X122XX2122
X21XX1X122X12122
221XX1X122XX2122
121X21X122X12122
X21X21X122XX2122
221X21X122X12122
121X11X122XX2122
X21X11X122X12122
221X11X122XX2122
121XX1X122X12122
X21XX1X122XX2122
221XX1X122X12122
121X21X122XX2122
X21X21X122X12122
221X21X122XX2122
