C11231123231313231323131323132322331323131113331322331323113311   >>    C1123112323131323132313132313232233132313111333132233132311331   <<    C11231123231313231323131323132322331323131113331322331323113313   >>      C11231123231313231323131323132322331323131113331322331323113312   >>