#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
#define a3 array<int, 3>
using namespace std;
const int N = 310;
const int oo = 2e9;
string ans = "", f[2][N][N], t, s[N];
int n, m;
bool better(string &nw, string &old){
return (sz(nw) > sz(old) || (sz(nw) == sz(old) && nw < old));
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef _LOCAL
freopen("in.txt","r",stdin);
#endif // _LOCAL
cin >> n >> m;
for (int i = 0; i < n; i++)
cin >> s[n - 1 - i];
for (int j = 0; j < m; j++)
if (s[0][j] == 'M')
f[0][j][0] = "";
else f[0][j][0] = ")";
for (int i = 0, tp = 0; i < n - 1; i++, tp ^= 1){
for (int j = 0; j < m; j++)
for (int sm = 0; sm <= i + 1; sm++)
f[tp ^ 1][j][sm] = ")";
for (int j = 0; j < m; j++)
for (int sm = 0; sm <= i; sm++){
if (f[tp][j][sm] == ")") continue;
for (int stp = -1; stp < 2; stp++){
int ni = i + 1, nj = j + stp;
if (nj < 0 || nj >= m) continue;
if (s[ni][nj] == '*'){
if (sm == 0){
if (better(f[tp][j][sm], ans))
ans = f[tp][j][sm];
}
} else if (s[ni][nj] == '.'){
if (f[tp][j][sm] < f[tp ^ 1][nj][sm])
f[tp ^ 1][nj][sm] = f[tp][j][sm];
} else if (s[ni][nj] == '('){
t = f[tp][j][sm] + "(";
if (t < f[tp ^ 1][nj][sm + 1])
f[tp ^ 1][nj][sm + 1] = t;
} else {
if (sm == 0) continue;
t = f[tp][j][sm] + ")";
// cerr << t << '\n' << f[tp ^ 1][nj][sm - 1] << '\n';
if (t < f[tp ^ 1][nj][sm - 1])
f[tp ^ 1][nj][sm - 1] = t;
}
}
}
}
int tp = (n - 1) % 2;
for (int j = 0; j < m; j++)
if (f[tp][j][0] != ")" && better(f[tp][j][0], ans))
ans = f[tp][j][0];
assert(sz(ans) > 0);
cout << sz(ans) << '\n' << ans;
return 0;
}
