C3131313233313113313223313223313112113313233313133313233313232233131311321   >>    C313131323331311331322331322331311211331323331313331323331323223313131132   <<    C3131313233313113313223313223313112113313233313133313233313232233131311323   >>      C3131313233313113313223313223313112113313233313133313233313232233131311322   >>