C11112331333132311331333132313331333133313233121111331333213223231   >>    C1111233133313231133133313231333133313331323312111133133321322323   <<    C11112331333132311331333132313331333133313233121111331333213223233   >>      C11112331333132311331333132313331333133313233121111331333213223232   >>