C121212123112323223313132322331323331323331322331323113313231312322131   >>    C12121212311232322331313232233132333132333132233132311331323131232213   <<    C121212123112323223313132322331323331323331322331323113313231312322133   >>      C121212123112323223313132322331323331323331322331323113313231312322132   >>