C11212213133313132313231322132313231311331313231333132322233231131   >>    C1121221313331313231323132213231323131133131323133313232223323113   <<    C11212213133313132313231322132313231311331313231333132322233231133   >>      C11212213133313132313231322132313231311331313231333132322233231132   >>