C11112331333132311331333133313331333132313311331323133313332321   >>    C1111233133313231133133313331333133313231331133132313331333232   <<    C11112331333132311331333133313331333132313311331323133313332323   >>      C11112331333132311331333133313331333132313311331323133313332322   >>