#include <cstdio>#include <iostream>#include <set>#include <string>using namespace std;set<string>heap;char ch, t[50];int up= 0, down= 0, len= 0;string str;int gcd( int a, int b ){return b == 0 ? a : gcd( b, a%b );}char upper(char ch){return ch > 'Z' ? ch-'a'+'A' : ch;}int main(){heap.clear();while ( EOF != (ch = fgetc(stdin)) ){if ( ('a' <= ch && 'z' >= ch) || ('A' <= ch && 'Z' >= ch) ) t[len++]= upper(ch);else{if ( 0 == len ) continue;len=t[len]=0;str= t;if ( str == "BULLSHIT" ){down++;up+=heap.size();heap.clear();}elseheap.insert(str);}}int m= gcd(up, down);printf("%d / %dn", up/m, down/m);return 0;}
