C11112331333132311331333133313331312111113112113313331323123221   >>    C1111233133313231133133313331333131211111311211331333132312322   <<    C11112331333132311331333133313331312111113112113313331323123223   >>      C11112331333132311331333133313331312111113112113313331323123222   >>