C212212121212113313221323131323131323132322331323132233132313232211211331   >>    C21221212121211331322132313132313132313232233132313223313231323221121133   <<    C212212121212113313221323131323131323132322331323132233132313232211211333   >>      C212212121212113313221323131323131323132322331323132233132313232211211332   >>