const fs = require('fs');
const input = fs.readFileSync('/dev/stdin').toString().split(' ');
let x = parseInt(input[0]);
let row,col,count=1,result;
const cal = (count)=>{
let i=0, result=0;
while(i<=count){
result+=i;
i++;
}
return result;
}
if(x===1){
result='1/1'
}else{
while(true){
if(cal(count)<x && x<=cal(count+1)){
if(count%2===0){
let temp=cal(count+1);
col=1;
row=count+1;
while(true){
if(temp===x){
break;
}else{
col++;
row--;
temp--
}
}
}else{
let temp=cal(count+1);
col=count+1;
row=1;
while(true){
if(temp===x){
break;
}else{
col--;
row++;
temp--;
}
}
}
result=`${col.toString()}/${row.toString()}`;
break;
}else{
count++
}
}
}
console.log(result);
๐ ๋ถ์+๋ถ๋ชจ-1๋ฒ์ด ์ค ์(๋๊ฐ์ ์ผ๋ก)์์ ์๋ฉด ๋ ๊ฐ๋จํ๊ฒ ํ ์ ์๋ค.