C21221212121323223313131323132322331323223313222233132112323131   >>    C2122121212132322331313132313232233132322331322223313211232313   <<    C21221212121323223313131323132322331323223313222233132112323133   >>      C21221212121323223313131323132322331323223313222233132112323132   >>