import std.stdio;
import std.string;
import std.conv;
void main(){
  int n = readln.chomp.to!int;
  int[][] m;
  foreach(_; 0 .. n){
    m ~= readln.split.to!(int[]);
  }
  writeln(c(m) && e(m) ? "Yes" : "No");
}

bool c(int[][] m){
  bool r = true;
  foreach(n0; 0 .. m.length){
    foreach(n1; 0 .. m.length){
      foreach(n2; 0 .. m.length){
        r = r && (m[m[n0][n1]][n2] == m[n0][m[n1][n2]]);
      }
    }
  }
  return r;
}

bool e(int[][] m){
  foreach(x; 0 .. m.length){
    bool r = true;
    foreach(n; 0 .. m.length){
      r = r && (m[n][x] == n && m[x][n] == n);
    }
    if(!r) continue;
    foreach(n; 0 .. m.length){
      r = false;
      foreach(i; 0 .. m.length){
        if(m[n][i] == x && m[i][n] == x){
          r = true;
          break;
        }
      }
      if(!r) break;
    }
    if(r) return true;
  }
  return false;
}