C111123313331323113313331323133313231333131323132313231323223313232221   >>    C11112331333132311331333132313331323133313132313231323132322331323222   <<    C111123313331323113313331323133313231333131323132313231323223313232223   >>      C111123313331323113313331323133313231333131323132313231323223313232222   >>