C111123313331323113313331323331323132313231323113313233313231323132221   >>    C11112331333132311331333132333132313231323132311331323331323132313222   <<    C111123313331323113313331323331323132313231323113313233313231323132223   >>      C111123313331323113313331323331323132313231323113313233313231323132222   >>