public Cell merge(Cell m, Cell e) {if (m.cmd == e.cmd && m.ref == e.ref && m.skip == e.skip) {Cell c = new Cell(m);c.cnt += e.cnt;return c;} else {return null;}}
public override Cell Merge(Cell m, Cell e){if (m.cmd == e.cmd && m.@ref == e.@ref && m.skip == e.skip) {Cell c = new Cell(m);c.cnt += e.cnt;return c;} else {return null;}}