C11112331333132311331333133313331333132313311211331322121111112111221   >>    C1111233133313231133133313331333133313231331121133132212111111211122   <<    C11112331333132311331333133313331333132313311211331322121111112111223   >>      C11112331333132311331333133313331333132313311211331322121111112111222   >>