#include <iostream>#include <cstdio>#include <string>using namespace std;string a,b;int check( int i,int j ){ int len,len1,len2; len1=a.size(); len2=b.size(); len=0; while( i<len1 && j<len2 ) { if( a[i]==b[j] ) { len++; } i++; j++; } return len;}void output( int up,int down ){ int t1,t2,temp; if( up==0 ) { cout<<"appx("<<a<<","<<b<<") = 0n"; return; } if( up==down ) { cout<<"appx("<<a<<","<<b<<") = 1n"; return; } if( up>down ) { t1=up; t2=down; } else { t1=down; t2=up; } while( t2!=0 ) { temp=t1%t2; t1=t2; t2=temp; } up/=t1; down/=t1; cout<<"appx("<<a<<","<<b<<") = "<<up<<"/"<<down<<endl;}int main(){ int maxi,t,i; while( cin>>a && a!="-1" ) { cin>>b; maxi=-1; for( i=0;i<b.size();i++ ){ if( maxi<( t=check( 0,i ) ) ) maxi=t; } for( i=1;i<a.size();i++ ) { if( maxi<( t=check( i,0 ) ) ) maxi=t; } output( 2*maxi,a.size()+b.size() ); } return 0;}
