C11231123231313231323131323132322331323131113331322331323233111   >>    C1123112323131323132313132313232233132313111333132233132323311   <<    C11231123231313231323131323132322331323131113331322331323233113   >>      C11231123231313231323131323132322331323131113331322331323233112   >>