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

struct Team
  {
  int id;
  int m;
  };

int main()
  {
  int n;
  struct Team * res;

  scanf ("%d", &n);
  res = (struct Team*)malloc( n * sizeof(struct Team) );

  for (int i = 0; i < n; i++)
    scanf ("%d %d", &res[i].id, &res[i].m);

  struct Team tmp;

  for (int i = 0; i < n-1; i++)
    for (int j = 0; j < n-1; j++)
      if (res[j].m < res[ j+1 ].m)
        {
          tmp = res[j];
          res[j] = res[ j+1 ];
          res[ j+1 ] = tmp;
        }

  for (int i = 0; i < n; i++)
    printf ("%d %d\n", res[i].id, res[i].m);

  return 0;
  }