C11112331333132311331333133313331333132312323133313331323133313112113113121   >>    C1111233133313231133133313331333133313231232313331333132313331311211311312   <<    C11112331333132311331333133313331333132312323133313331323133313112113113123   >>      C11112331333132311331333133313331333132312323133313331323133313112113113122   >>