C11212213133313132313231322132313231333132313112331323331323222331111   >>    C1121221313331313231323132213231323133313231311233132333132322233111   <<    C11212213133313132313231322132313231333132313112331323331323222331113   >>      C11212213133313132313231322132313231333132313112331323331323222331112   >>