To find the maximum flow from source A to sink B, I would typically need either:

1. A flow network diagram (graph) showing the capacities of edges between nodes.
2. A table of capacities for each edge connecting nodes in the flow network.

If you have any of these, feel free to upload a diagram or provide the relevant details about the flow network, and I'll help you calculate the maximum flow using techniques like the Ford-Fulkerson algorithm or Edmonds-Karp algorithm.

Let me know how you'd like to proceed!