Until a shift occurred 9382.839 generations ago, deme C's population was consistently 8484. Since then, it decreased to 5616, a number that has remained unchanged to the current time.
time_units: generations
demes:
  - name: C
    start_time: .inf
    epochs:
      - start_size: 8484
        end_time: 9382.839
      - start_size: 5616
        end_time: 0