C21111113313132322331323331323113313233313231122112323133313121221   >>    C2111111331313232233132333132311331323331323112211232313331312122   <<    C21111113313132322331323331323113313233313231122112323133313121223   >>      C21111113313132322331323331323113313233313231122112323133313121222   >>