C11112331333132311331333133313331333132313311211331323223311211331333131113221   >>    C1111233133313231133133313331333133313231331121133132322331121133133313111322   <<    C11112331333132311331333133313331333132313311211331323223311211331333131113223   >>      C11112331333132311331333133313331333132313311211331323223311211331333131113222   >>