#include <stdio.h>
int check_7(int n){
  while(n > 0){
    if(n % 10 == 7){
      return 1;
    }
    n /= 10;
  }
  return 0;
}
int main(){
  int n;
  scanf("%d",&n);
  int a = n,b = 0;
  do{
    a++;
    b--;
  }while(check_7(a) == 0 &&check_7(b) == 0);
  printf("%d %d\n",a,b);
  return 0;
}