#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b=1,c=0,s=0; cin>>a; for(int i=1;i<=a;i++){ s=b; for(int i=a-b;i>=b;i--){ s+=s-1; } if(s+b%2==0){ cout<<b<<a-b+1; return 0; } b++; } return 0; }