#include using namespace std; #include using namespace atcoder; using ll = long long; using VI = vector; using VVI = vector; using VL = vector; using VVL = vector; using VD = vector; using VVD = vector; using VS = vector; using P = pair; using VP = vector

; #define rep(i, n) for (ll i = 0; i < ll(n); i++) #define out(x) cout << x << endl #define dout(x) cout << fixed << setprecision(10) << x << endl #define all(a) (a).begin(),(a).end() #define rall(a) (a).rbegin(),(a).rend() #define sz(x) (int)(x.size()) #define re0 return 0 #define pcnt __builtin_popcountll template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } constexpr int inf = 1e9; constexpr ll INF = 1e18; //using mint = modint1000000007; using mint = modint998244353; int di[4] = {1,0,-1,0}; int dj[4] = {0,1,0,-1}; int main(){ ll n; cin >> n; string ans; bool end = false; set memo; auto rec = [&](auto &rec,ll x) -> void { if(end) return; if(memo.count(x)) return; if(x == 1){ end = true; out(sz(ans)); out(ans); return; } if(x%2 == 0){ ans += '/'; rec(rec,x/2); ans.pop_back(); } else { if(x*3+1 <= INF){ ans += '+'; rec(rec,x*3+1); ans.pop_back(); } if(x*3-1 <= INF){ ans += '-'; rec(rec,x*3-1); ans.pop_back(); } } memo.insert(x); return; }; rec(rec,n); }