C1121221313331313231323132213231323133313231311233132333132313232322311   >>    C112122131333131323132313221323132313331323131123313233313231323232231   <<    C1121221313331313231323132213231323133313231311233132333132313232322313   >>      C1121221313331313231323132213231323133313231311233132333132313232322312   >>