#include <stdio.h>
#include <stdlib.h>

#define check(a)   if (a==NULL) { printf("Out of memory!\n"); \
                                  exit(-1); }

double det(double **a,int n)
{
  double **x;
  double ret;
  double sign;
  int j,s,k;
  
  ret=0.0;
  sign=1.0;
  
  if ( n==1 ) return a[0][0];  

  for(j=0; j<n; j++) {
    x=(double **)malloc((n-1)*sizeof(double *)); check(x);
    k = 0;
    for(s=0; s<n; s++) {
      if ( s==j ) continue;
      x[k++] = a[s]+1;
    }
    if (a[j][0] != 0.0) 
      ret += a[j][0]*sign*det(x,n-1);
    sign = -sign;
    free(x);
  }
  return ret;
}

int main() {
  int n,s,l;
  double** a;
  double* b, *old_column;
  double deta;

  scanf("%d",&n);
  a = (double **)malloc(n*sizeof(double *)); check(a);
  for (s=0; s<n; s++) 
    { a[s] = (double *)malloc(n*sizeof(double)); check(a[s]); }
  b = (double *)malloc(n*sizeof(double)); check(b);

  for (l=0; l<n; l++)
    for (s=0; s<n; s++)
      scanf("%lf",&a[s][l]);
  for (l=0; l<n; l++)
    scanf("%lf",&b[l]);

  if ((deta=det(a,n)) == 0.0) {
    printf("Matrix A singular!");
    exit(-1);
  }
  printf("|A|=%g\n",deta);
  for (s=0; s<n; s++) {
    old_column = a[s]; a[s] = b;
    printf("x_%d=%g\n",s,det(a,n)/deta);
    a[s] = old_column;
  }
  free(b);
  free(a);
}