... 24 <b> Cellular automaton </b> is a set of cells. Each cell can be in one of several possible states. Cell can change its state, according to state of neighbors of the cell. This process is determined by transition rules. <b> Cyclic cellular automaton </b> is a kind of cellular automaton, its set of states is a cycle, and cell changes its state to next one, according to cycle order. ... 52 <b> Clean field </b> converts all cells in first state of automaton list of states. <br> . ...