C212212121212113313221323131323133313132333132322132322331311211131   >>    C21221212121211331322132313132313331313233313232213232233131121113   <<    C212212121212113313221323131323133313132333132322132322331311211133   >>      C212212121212113313221323131323133313132333132322132322331311211132   >>