#include <cstdio> //======================================================= // PrintInBinary //======================================================= // PrintInBinary(n) writes out the binary representation // of n. //======================================================= void PrintInBinary(long n) { if(n > 1) { PrintInBinary(n/2); } printf("%ld", n%2); } int main() { long n; scanf("%ld", &n); PrintInBinary(n); return 0; }