> #include<cstdio>
> #include<cstdlib>
> #include<cstring>
> #include<cmath>
> #define LL long long
> int main(){
>         LL n,addup,son,parent,last;
>         while(scanf("%lld", &n)!=EOF){
>                 LL sum =0;
>                 for(int i=1;;i++){
>                         sum+=i;
>                         if(sum >=n){last= sum-i; addup = i+1; break;}
>                 }
>                 if(addup%2==0){
>                         parent = n - last;
>                         son = addup-parent;
>                 }
>                 else{
>                         son = n - last;
>                         parent = addup-son;
>                 }
>                 printf("TERM %lld IS %lld/%lld\n", n,son,parent);
>         }
>         return 0;
> }