C3131313233313113313223313223313112113313233313133313231333132321121   >>    C313131323331311331322331322331311211331323331313331323133313232112   <<    C3131313233313113313223313223313112113313233313133313231333132321123   >>      C3131313233313113313223313223313112113313233313133313231333132321122   >>