Scheme 1.
The diagram consists of multiple interconnected components labeled as C0, C1, C2, C3, C4, O, I0, I1, I2, I3, I4, and IF. These components are arranged in a grid-like structure with horizontal and vertical arrows indicating the flow and transitions between them. The labels L2, L3, L4, and L5 are positioned above the horizontal arrows connecting C2, C3, C4, and O. The arrows indicate the direction of the transitions, showing the relationships and interactions between the different components.