//AC
#include <iostream>
#include <cstdlib>
#include <stdio.h>
#include <algorithm>
#include <math.h>
#include <string.h>
#include <queue>
#include <stack>
#include <vector>
#include <map>
#include <set>
typedef long long ll;
using namespace std;
int main(){
int a[4];
for(int i=0;i<=2;i++){
cin>>a[i];
}
sort(a, a+3);
printf("%d->%d->%d\n",a[0],a[1],a[2]);
}
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