11111121XX112121
1111112122122121
XX122121XX112121
XX12212122122121
XX1111212X112121
XX111121X2122121
111221212X112121
11122121X2122121
X1121121X2112121
X11211212X122121
1X112121X2112121
1X1121212X122121
X1112121XX122121
X111212122112121
1X121121XX122121
1X12112122112121
1X1X212122112110
1X1X212X22112110
1X1X212122122110
1X1X212X22122110
