#include <stdio.h> int main() { int n,m; scanf("%d",&n); int a[1000]; int temp=n; int length=0; if(n==0){ printf("0"); } do{ m=temp%2; a[length]=m; length++; temp=temp/2; } while(temp!=0); for(int i=length-1;i>=0;i-- ){ printf("%d",a[i]); } return 0; }