#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 k,a,b; cin>>k; for(int x=1+k;x<=2*k;x++){ b=x-k; a=x*k; if(a%b==0){ cout<<"1/"<<k<<"="<<"1/"<<x<<"+1/"<<a/b<<endl; } } return 0; }