#include using namespace std; struct iofast_t { iofast_t() { ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); } } iofast; struct uns_t {} uns; template auto vec(Element init, Head arg, Args ...args) { if constexpr (sizeof...(Args) == 0) return std::vector(arg, init); else return std::vector(arg, vec(init, args...)); } template auto vec(uns_t, Head arg, Args ...args) { return vec(Element(), arg, args...); } template > T &chmin(T &l, T r, Compare &&f = less()) { return l = min(l, r, f); } template > T &chmax(T &l, T r, Compare &&f = less()) { return l = max(l, r, f); } int main() { string s; cin >> s; auto pow = [](int64_t x, int n) { int64_t ans = 1; while (n--) { ans *= x; } return ans; }; int p = distance(begin(s), find(begin(s), end(s), '.')); if (p == size(s)) { cout << s << "/1" << endl; return 0; } int64_t a = stoll(s.substr(0, p) + s.substr(p + 1)); int64_t b = pow(10, size(s) - p - 1); int64_t g = gcd(a, b); a /= g; b /= g; cout << a << "/" << b << endl; }