C11112331333132311331333133313331333132313233313331322231311213221   >>    C1111233133313231133133313331333133313231323331333132223131121322   <<    C11112331333132311331333133313331333132313233313331322231311213223   >>      C11112331333132311331333133313331333132313233313331322231311213222   >>