#include<bits/stdc++.h>
using namespace std;
string s;
int a[10005];
int pos[10005];
int pow_ten(int n){
    int num=1;
    for(int i=0;i<n;i++){
        num*=10;
    }
    return num;
}
int str2num(int start,int end){
    int num=0,cnt,tem=1;
    cnt=end-start-1;
    for(int i=end-1,j=0;i>start;i--){
        num+=(s[i]-'0')*pow_ten(j);
        j++; 
    }
    return num;
}
int gcd(int a,int b){
    return !b?a:gcd(b,a%b);
}
int main(){
    while(cin>>s){
        memset(a,0,sizeof(a));
        memset(pos,0,sizeof(pos));
        if(s[0]=='['){
            int j=0;
            for(int i=0;i<s.size();i++){
                if(s[i]<'0'||s[i]>'9'){
                    pos[j++]=i; 
                }
            }
            for(int i=0;i<j-1;i++){
                //cout<<pos[i]<<" ";
                a[i] = str2num(pos[i],pos[i+1]);
            }
            //cout<<endl;
            //for(int i=0;i<j-1;i++){
            //  cout<<a[i]<<" ";
            //}
            //cout<<endl;
            int num=1,den=a[j-2],tem;
            for(int i=j-3;i>0;i--){
                tem = num;
                num = den;
                den = den*a[i]+tem;
            }
            num = a[0]*den+num;
            cout<<num<<'/'<<den<<endl;
        }
        else {
            int pos;
            for(int i=0;i<s.size();i++){
                if(s[i]<'0'||s[i]>'9'){
                    pos=i;
                }
            }
            //cout<<pos<<endl;
            int num = str2num(-1,pos);
            int den = str2num(pos,s.size());
            //cout<<num<<" "<<den;
            int temp1 = num;
            num/=gcd(num,den);
            den/=gcd(temp1,den);
            int i=0,tem;
            if(num==1){
                cout<<'['<<0<<';'<<den<<']'<<endl;
            }
            else{
                while(num!=1){
                    a[i++] = num/den;
                    tem = num%den;
                    num=den;
                    den =tem;
                }
                cout<<'[';
                for(int j=0;j<i;j++){
                    if(j==0) cout<<a[j]<<';';
                    else if(j<i-1) cout<<a[j]<<',';
                    else cout<<a[j];
                }
                cout<<']'<<endl;
            }   
        }
    }
    return 0;
}