## https://yukicoder.me/problems/no/806

from collections import deque

def main():
    N = int(input())

    prev = {N: -1}

    queue = deque()
    queue.append(N)
    while len(queue) > 0:
        w = queue.popleft()

        if w % 2 == 0:
            x = w // 2
            if x not in prev:
                prev[x] = (w, "/")
                queue.append(x)
                if x == 1:
                    break

        else:
            # +
            x = 3 * w + 1
            if x <= 10 ** 18:
                if x not in prev:
                    prev[x] = (w, "+")
                    queue.append(x)
                    if x == 1:
                        break
            # - 
            x = 3 * w - 1
            if x <= 10 ** 18:
                if x not in prev:
                    prev[x] = (w, "-")
                    queue.append(x)
                    if x == 1:
                        break

    answer = []
    x = 1
    while x != N:
        x, y = prev[x]
        answer.append(y)
    answer.reverse()
    print(len(answer))
    print("".join(answer))




                




if __name__ == "__main__":
    main()