#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<string.h>
#include<assert.h>
#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

int N, P;
int res[1000000][4], res_size;
char mp[31][31];

void res_add(int x1, int y1, int x2, int y2){
/*  puts("");
  printf("%d %d %d %d\n",x1,y1,x2,y2);
  int i, j; rep(i,N){ rep(j,N)putchar(mp[i][j]); puts(""); }*/
  
  assert( mp[x1][y1]=='*' && mp[x2][y2]=='.' );

  mp[x1][y1]='.'; mp[x2][y2]='*';
  res[res_size][0] = y1;
  res[res_size][1] = x1;
  res[res_size][2] = y2;
  res[res_size][3] = x2;
  res_size++;
}

int main(){
  int i, j, k, l, a, b;
  int S, R;
  char in[31][31], gl[31][31];

  assert( scanf("%d",&N)==1 );
  assert( 1<=N && N<=30 );
  rep(i,N) assert( scanf("%s",in[i])==1 );
  rep(i,N) assert( strlen(in[i])==N );

  k = 0;
  rep(i,N) rep(j,N) {
    assert( in[i][j]=='.' || in[i][j]=='*' );
    if(in[i][j]=='*') k++;
  }

  REP(P,1,N+1) if(k == P*(P+1)/2) break;
  assert( 1<=P && P<=N );

  rep(i,N) rep(j,N) gl[i][j] = '.';
  rep(k,P) rep(i,k+1) gl[i][k-i] = '*';

  S = R = 0;
  rep(i,N) rep(j,N) if(in[i][j]=='*') S += (i+1) + (j+1);
  rep(i,N) rep(j,N) if(gl[i][j]=='*') R += (i+1) + (j+1);
  assert(S!=R);

  rep(i,N) rep(j,N) mp[i][j] = in[i][j];
  res_size = 0;

  rep(i,N) rep(j,N) if(mp[i][j]=='.' && gl[i][j]=='*'){
    a = -1;
    REP(k, i, N){
      REP(l, j, N) if( mp[k][l]=='*' ){
        a = k; b = l; break;
      }
      if(a >= 0) break;
      if(k==i) continue;
      for(l=j-1;l>=0;l--) if( mp[k][l]=='*' ){
        a = k; b = l; break;
      }
    }

    while(a > i+1) res_add(a, b, a-1, b), a--;
    while(b < j-1) res_add(a, b, a, b+1), b++;
    while(b > j)   res_add(a, b, a, b-1), b--;
    if(a!=i || b!=j) res_add(a, b, i, j);
  }

  printf("%d\n",res_size);
  rep(i,res_size) printf("%d %d %d %d\n",res[i][0],res[i][1],res[i][2],res[i][3]);
  
  return 0;
}