C111123313331323113313331323133313231323132322331323133313113323213221   >>    C11112331333132311331333132313331323132313232233132313331311332321322   <<    C111123313331323113313331323133313231323132322331323133313113323213223   >>      C111123313331323113313331323133313231323132322331323133313113323213222   >>