#include <bits/stdc++.h>

#define REP(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(x) (x).begin(),(x).end()

using namespace std;

typedef long long ll;
typedef long double ld;

const ld eps = 1e-9, pi = acos(-1.0);

int A[256], B[256];
ld C[256];

int main() {
  int N, M; cin >> N >> M;
  REP(i,M) cin >> A[i] >> B[i] >> C[i];
  REP(i,M) C[i] /= 100;
  ld res = 0;
  for (int bit = (1 << (N-1)) + 1; bit < (1 << N); bit += 2) {
    vector<ld> p(N, 1);
    REP(i,M) if ((bit >> A[i]) & 1) p[B[i]] *= 1 - C[i];
    ld prod = 1;
    for (int i = 1; i < N; ++i) {
      if ((bit >> i) & 1) prod *= 1 - p[i];
      else prod *= p[i];
    }
    res += prod;
  }
  cout << setprecision(12) << fixed;
  cout << res << endl;
  return 0;
}