from sys import stdin
input=stdin.readline
def main():
 N=int(input())
 fele=(N+1)//2
 erk=[0]*N
 tav=[0]*N
 for i in range(N):
   a,b=map(int,input().split())
   erk[i]=a
   tav[i]=b
 tav.sort()
 if N<=2:
  print(1)
  print(erk[0],erk[0])
  return
 l=fele
 x=0
 y=fele-1
 res=erk[y]-tav[x]
 resx=x
 resy=y
 while y<N:
  if res<0:
      print(1)
      print(erk[y],erk[y])
      return
  if l>fele:
   x+=1
   l-=1
   cur=erk[y]-tav[x]
   if cur<res:
    res=cur
    resx=x
    resy=y
  else:
   y+=1
   l+=1
   if y<N:
    cur=erk[y]-tav[x]
    if cur<res:
     res=cur
     resx=x
     resy=y
 print(res+1)
 print(tav[resx],erk[resy])
main()