tlincra__hdMarked_a__zerosconsnatsMarked_a__natszerosadxMarked_a__hda__zeroshdMarked_marksmarkMarked_a__incra__natsa__tlMarked_a__adx0a__incrMarked_a__tla__adxX2X1YXa__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_a__natsMarked_a__adx(a__zeros)Marked_a__natsMarked_a__zerosMarked_a__adx(cons(X,Y))Marked_a__incr(cons(X,adx(Y)))Marked_a__hd(cons(X,Y))Marked_mark(X)Marked_a__tl(cons(X,Y))Marked_mark(Y)Marked_mark(nats)Marked_a__natsMarked_mark(adx(X))Marked_a__adx(mark(X))Marked_mark(adx(X))Marked_mark(X)Marked_mark(zeros)Marked_a__zerosMarked_mark(incr(X))Marked_a__incr(mark(X))Marked_mark(incr(X))Marked_mark(X)Marked_mark(hd(X))Marked_a__hd(mark(X))Marked_mark(hd(X))Marked_mark(X)Marked_mark(tl(X))Marked_a__tl(mark(X))Marked_mark(tl(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_a__hd(cons(X,Y))Marked_mark(X)Marked_a__tl(cons(X,Y))Marked_mark(Y)Marked_mark(adx(X))Marked_mark(X)Marked_mark(incr(X))Marked_mark(X)Marked_mark(hd(X))Marked_a__hd(mark(X))Marked_mark(hd(X))Marked_mark(X)Marked_mark(tl(X))Marked_a__tl(mark(X))Marked_mark(tl(X))Marked_mark(X)a__adx20Marked_a__tl230a__incr1000a__tl220a__nats0mark20s0Marked_mark230hd20a__zeros0Marked_a__hd220adx20zeros0nats0cons210a__hd20incr10tl220Marked_mark(tl(X))Marked_a__tl(mark(X))Marked_mark(tl(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_a__hd(cons(X,Y))Marked_mark(X)Marked_a__tl(cons(X,Y))Marked_mark(Y)Marked_mark(adx(X))Marked_mark(X)Marked_mark(incr(X))Marked_mark(X)Marked_mark(hd(X))Marked_a__hd(mark(X))Marked_mark(hd(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_a__hd(cons(X,Y))Marked_mark(X)Marked_mark(adx(X))Marked_mark(X)Marked_mark(incr(X))Marked_mark(X)Marked_mark(hd(X))Marked_a__hd(mark(X))Marked_mark(hd(X))Marked_mark(X)a__adx10a__incr1000a__tl10a__nats0mark10s10Marked_mark110hd310a__zeros0Marked_a__hd310adx10zeros0nats0cons110a__hd310incr10tl10Marked_a__hd(cons(X,Y))Marked_mark(X)Marked_mark(hd(X))Marked_a__hd(mark(X))Marked_mark(hd(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_mark(adx(X))Marked_mark(X)Marked_mark(incr(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)Marked_mark(adx(X))Marked_mark(X)Marked_mark(incr(X))Marked_mark(X)Marked_mark1Marked_mark(incr(X))Marked_mark(X)Marked_mark(adx(X))Marked_mark(X)a__natsa__adx(a__zeros)a__zeroscons(0,zeros)a__incr(cons(X,Y))cons(s(X),incr(Y))a__adx(cons(X,Y))a__incr(cons(X,adx(Y)))a__hd(cons(X,Y))mark(X)a__tl(cons(X,Y))mark(Y)mark(nats)a__natsmark(adx(X))a__adx(mark(X))mark(zeros)a__zerosmark(incr(X))a__incr(mark(X))mark(hd(X))a__hd(mark(X))mark(tl(X))a__tl(mark(X))mark(cons(X1,X2))cons(X1,X2)mark(0)0mark(s(X))s(X)a__natsnatsa__adx(X)adx(X)a__zeroszerosa__incr(X)incr(X)a__hd(X)hd(X)a__tl(X)tl(X)