struct Edge {
  int weight;
  int source;
  int target;
  Edge next;
  bool hasNext
}

int min(int x, int y) {
  if (x < y) {
    return x;
  } else {
    return y;
  }
}

int maximum(int x, int y) {
  if (x < y | x == 5000) {
    return y;
  } else {
    return x;
  }
}

int program(int argc, string[] argv) {
  var n = 10;
  var arr = new int[][10];
  
  for (var i = 0; i < 10; i = i + 1;) {
    arr[i] = new int[10];
    for (var j = 0; j < 10; j = j + 1;) {
      if (i == j) {
        arr[i][j] = 0;
      } else {
        arr[i][j] = 5000;
      }
    }
  }
  
  var e0 = new Edge {weight = 4; source = 1; target = 2; next = Edge null; hasNext = false};
  var e1 = new Edge {weight = 3; source = 2; target = 0; next = e0; hasNext = true};   
  var e2 = new Edge {weight = 4; source = 8; target = 5; next = e1; hasNext = true};   
  var e3 = new Edge {weight = 1; source = 5; target = 7; next = e2; hasNext = true};   
  var e4 = new Edge {weight = 2; source = 3; target = 1; next = e3; hasNext = true};   
  var e5 = new Edge {weight = 3; source = 5; target = 4; next = e4; hasNext = true};   
  var e6 = new Edge {weight = 7; source = 2; target = 1; next = e5; hasNext = true};   
  var e7 = new Edge {weight = 5; source = 3; target = 8; next = e6; hasNext = true};   
  var e8 = new Edge {weight = 8; source = 9; target = 4; next = e7; hasNext = true};   
  var e9 = new Edge {weight = 3; source = 2; target = 7; next = e8; hasNext = true};   
  var e10 = new Edge {weight = 3; source = 0; target = 2; next = e9; hasNext = true};   
  var e11 = new Edge {weight = 0; source = 0; target = 3; next = e10; hasNext = true};   
  var e12 = new Edge {weight = 4; source = 3; target = 2; next = e11; hasNext = true};   
  var e13 = new Edge {weight = 2; source = 1; target = 8; next = e12; hasNext = true};   
  var e14 = new Edge {weight = 7; source = 5; target = 1; next = e13; hasNext = true};   
  

   var e = e14;
  while(e.hasNext) {
    arr[e.source][e.target] = e.weight;
    e = e.next;
  }
  arr[e.source][e.target] = e.weight;
 
 /* 
  arr[1][2] = 4;
  arr[2][0] = 3;
  arr[8][5] = 4;
  arr[5][7] = 1;
  arr[3][1] = 2;
  arr[5][4] = 3;
  arr[2][1] = 7;
  arr[3][8] = 5;
  arr[9][4] = 8;
  arr[2][7] = 3;
  arr[0][2] = 3;
  arr[0][3] = 0;
  arr[3][2] = 4;
  arr[1][8] = 2;
  arr[5][1] = 7;
 */
 

  for (var k = 0; k < n; k = k + 1;) {
    for (var i = 0; i < n; i = i + 1;) {
      for (var j = 0; j < n; j = j + 1;) {
        arr[i][j] = min(arr[i][k] + arr[k][j], arr[i][j]);
      }
    }
  }
  

  var max = 0;
  for (var i = 0; i < 10; i = i + 1;) {
    for (var j = 0; j < 10; j = j + 1;) {
      max = maximum(arr[i][j], max); 
    }
  } 
  
  return max;
}