#include<stdio.h> struct pairs{ int x,y; }; struct pairs pairs[10000]; int judge(int k,int i){ if((k*i)%(i-k)==0) return 1; else return 0; } int main(){ int k,count; while(scanf("%d",&k)!=EOF){ count=0; for(int i=k+1;i<=2*k;i++){ if(judge(k,i)){ count++; pairs[count].x=k*i/(i-k); pairs[count].y=i; } } printf("%d ",count); for(int i=1;i<=count;i++){ printf("1/%d = 1/%d + 1/%d ",k,pairs[i].x,pairs[i].y); } } return 0; }