C1111233133313231133133313231333132313231323223313231333132212311   >>    C111123313331323113313331323133313231323132322331323133313221231   <<    C1111233133313231133133313231333132313231323223313231333132212313   >>      C1111233133313231133133313231333132313231323223313231333132212312   >>