C212212121212113313221323131323132313132322331323132233132313331323132131   >>    C21221212121211331322132313132313231313232233132313223313231333132313213   <<    C212212121212113313221323131323132313132322331323132233132313331323132133   >>      C212212121212113313221323131323132313132322331323132233132313331323132132   >>