#include<iostream>
#include<string.h>
#include<iomanip>
#include<cstdio>
using namespace std;
int main()
{
    char a[30],b[30];
    double love;
    while(!cin.eof())
    {
        gets(a);
        gets(b);
        int aaa=0,bbb=0,i,aa,bb,sum1,sum2;
        aa=strlen(a);
        bb=strlen(b);
        for(i=0; i<aa; i++)
        {
            if(isalpha(a[i]))
            {
                if('a'<= a[i] && a[i]<='z')
                {
                    aaa+=(a[i]-96);
                }
                else
                {
                    aaa+=(a[i]-64);
                }
            }
        }
        for(i=0; i<bb; i++)
        {
            if(isalpha(b[i]))
            {
                if('a'<=b[i] && b[i]<='z')
                {
                    bbb+=(b[i]-96);
                }
                else
                {
                    bbb+=(b[i]-64);
                }
            }
        }
        aaa=((aaa-1)%9)+1;
        bbb=((bbb-1)%9)+1;
        if(aaa>=bbb)
        {
            love=((double)bbb/(double)aaa)*100;
            printf("%.2lf %%\n",love);
        }
        else
        {
            love=((double)aaa/(double)bbb)*100;
            printf("%.2lf %%\n",love);
        }
    }
    return 0;
}