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