C11231123231313231323131323132322331323331333132313331323223231   >>    C1123112323131323132313132313232233132333133313231333132322323   <<    C11231123231313231323131323132322331323331333132313331323223233   >>      C11231123231313231323131323132322331323331333132313331323223232   >>