C3131313233313113313223313223313112113313231323111133132323323111   >>    C313131323331311331322331322331311211331323132311113313232332311   <<    C3131313233313113313223313223313112113313231323111133132323323113   >>      C3131313233313113313223313223313112113313231323111133132323323112   >>