C1121221313331313231323132213231323133313231311233132333132323312231   >>    C112122131333131323132313221323132313331323131123313233313232331223   <<    C1121221313331313231323132213231323133313231311233132333132323312233   >>      C1121221313331313231323132213231323133313231311233132333132323312232   >>