// #pragma GCC target("avx") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") #include using namespace std; #define rep(i,n) for(int i = 0; i < (int)n; i++) #define FOR(n) for(int i = 0; i < (int)n; i++) #define repi(i,a,b) for(int i = (int)a; i < (int)b; i++) #define all(x) x.begin(),x.end() //#define mp make_pair #define vi vector #define vvi vector #define vvvi vector #define vvvvi vector #define pii pair #define vpii vector> template void chmax(T &a, const T &b) {a = (a > b? a : b);} template void chmin(T &a, const T &b) {a = (a < b? a : b);} using ll = long long; using ld = long double; using ull = unsigned long long; const ll INF = 1e18; const ld pi = 3.1415926535897932384626433832795028; const ll mod = 998244353; int dx[] = {1, 0, -1, 0, -1, -1, 1, 1}; int dy[] = {0, 1, 0, -1, -1, 1, -1, 1}; #define int long long void solve() { int n; cin >> n; // int pre_n = n; string ans; while(n != 1) { if(n%2==0) { ans.push_back('/'); n /= 2; }else if(n%4==1) { ans.push_back('+'); n = 3*n+1; }else { ans.push_back('-'); n = 3*n-1; } } cout << (int)ans.size() << endl; cout << ans << endl; // n = pre_n; // for(char c : ans) { // if(c == '/') { // assert(n%2==0); // n /= 2; // } // if(c == '+') { // n = 3*n+1; // } // if(c == '-') { // n = 3*n-1; // } // assert(n <= INF); // } // assert(n == 1); } signed main() { cin.tie(nullptr); ios::sync_with_stdio(false); solve(); return 0; }