Press the leftmost switch. Monostable output.
"Time" as we think of it is all but non-existant to the photon. And in fact the electrons that we think of to be following a path around a circuit that we have so smartly pre-ordained exist at all nodes simultaneously. It is only what and when we measure do we observe what we believe to be truth. I propose that it is actually the inverse of Kirchoff's Laws which would be the more accurate, universal truth...
Food for thought...