import std.conv, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, std.regex, std.typecons;
import core.bitop;

class EOFException : Throwable { this() { super("EOF"); } }
string[] tokens;
string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }
int readInt() { return readToken.to!int; }
long readLong() { return readToken.to!long; }
real readReal() { return readToken.to!real; }

void chmin(T)(ref T t, in T f) { if (t > f) t = f; }
void chmax(T)(ref T t, in T f) { if (t < f) t = f; }

int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; }
int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); }
int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); }


int M, N;
real[][] P;
int[][] S;

void main() {
  try {
    for (; ; ) {
      M = readInt();
      N = readInt();
      P = new real[][](M, N);
      foreach (x; 0 .. M) foreach (y; 0 .. N) {
        P[x][y] = readInt() / 100.0;
      }
      S = new int[][](M, N);
      foreach (x; 0 .. M) foreach (y; 0 .. N) {
        S[x][y] = readInt();
      }
      
      auto prob = new real[][](M, 1 << N);
      foreach (x; 0 .. M) {
        foreach (a; 0 .. 1 << N) {
          prob[x][a] = 1.0;
          foreach (y; 0 .. N) {
            prob[x][a] *= ((a >> y) & 1) ? P[x][y] : (1.0 - P[x][y]);
          }
        }
      }
      
      auto dp = new real[][](M + 1, 1 << N);
      foreach (x; 0 .. M + 1) {
        dp[x][] = 0.0;
      }
      dp[0][0] = 1.0;
      foreach (x; 0 .. M) {
        foreach (b; 0 .. 1 << N) {
          if (isNormal(dp[x][b])) {
            foreach (a; 0 .. 1 << N) {
              int bb;
              foreach (y; 0 .. N) {
                if ((a >> y) & 1) {
                  if ((4 - S[x][y]) + ((b >> y) & 1) + ((y - 1 >= 0) ? ((bb >> (y - 1)) & 1) : 0) + ((bb >> (y + 1)) & 1) >= 4) {
                    bb |= 1 << y;
                  }
                }
              }
              foreach_reverse (y; 0 .. N) {
                if ((a >> y) & 1) {
                  if ((4 - S[x][y]) + ((b >> y) & 1) + ((y - 1 >= 0) ? ((bb >> (y - 1)) & 1) : 0) + ((bb >> (y + 1)) & 1) >= 4) {
                    bb |= 1 << y;
                  }
                }
              }
              dp[x + 1][bb] += dp[x][b] * prob[x][a];
            }
          }
        }
      }
      
      real ans = 0.0;
      foreach (x; 0 .. M) {
        foreach (b; 0 .. 1 << N) {
          ans += dp[x + 1][b] * popcnt(b);
        }
      }
      writefln("%.20f", ans);
    }
  } catch (EOFException e) {
  }
}