#include<stdio.h>

void run(void){
  long long int n;
  scanf("%lld",&n);

  const int p=7;
  long long int t=1;
  while(p*t<=n){
    t*=p;
  }
  while(t>=1){
    printf("%lld",n/t);
    n=n%t;
    t/=p;
  }
  printf("\n");
  return;
}

int main(void){
  run();
  return 0;
}