def compare(inter): u.arithmetic(inter, lambda s, f: inter.stack.append(1 if f > s else 0))
def subtract(inter): u.arithmetic(inter, lambda s, f: inter.stack.append(f - s))
def sum_cmd(inter): u.arithmetic(inter, lambda s, f: inter.stack.append(s + f))
def multiply(inter): u.arithmetic(inter, lambda s, f: inter.stack.append(s * f))
def divide(inter): u.arithmetic(inter, lambda b, a: inter.stack.append(0) if b == 0 else inter.stack.append(a / b))
def mod(inter): u.arithmetic(inter, lambda b, a: inter.stack.append(0) if b == 0 else inter.stack.append(a % b))