C11112331333132311331333133313331333132313311211331323221323311   >>    C1111233133313231133133313331333133313231331121133132322132331   <<    C11112331333132311331333133313331333132313311211331323221323313   >>      C11112331333132311331333133313331333132313311211331323221323312   >>