Count on Cantor

#include<bits/stdc++.h>

using namespace std;

int main()
{
    long long n,diag_pos,print_n,lob,hor;

    while(scanf("%lld",&n)!=EOF)
    {
        print_n = n;

        for(diag_pos=1;n>diag_pos;diag_pos++)
        {
            n-=diag_pos;
        }

        if(diag_pos%2)
        {
            lob = diag_pos - n + 1;
        }
        else
        {
            lob = n;
        }

        hor = diag_pos+1-lob;

        printf("TERM %lld IS %lld/%lld\n",print_n,lob,hor);
    }

    return 0;
}