#include <stdio.h>

#include <iostream>

#include <string.h>

using namespace std;



int main()

{

    char s[100],len;

    int i,j,op,d,sum,ip=0,ip1,ip2;

    float result;

    while(gets(s))

    {

         ip++;

         sum=0;

        len=strlen(s);

        for(i=0;i<len;i++)

        {

            if(s[i]=='a' || s[i]=='A')

            sum+=1;

            if(s[i]=='b' || s[i]=='B')

            sum+=2;

            if(s[i]=='c' || s[i]=='C')

            sum+=3;

            if(s[i]=='d' || s[i]=='D')

            sum+=4;

            if(s[i]=='e' || s[i]=='E')

            sum+=5;

            if(s[i]=='f' || s[i]=='F')

            sum+=6;

            if(s[i]=='g' || s[i]=='G')

            sum+=7;

            if(s[i]=='h' || s[i]=='H')

            sum+=8;

            if(s[i]=='i' || s[i]=='I')

            sum+=9;

            if(s[i]=='j' || s[i]=='J')

            sum+=10;

            if(s[i]=='k' || s[i]=='K')

            sum+=11;

            if(s[i]=='l' || s[i]=='L')

            sum+=12;

            if(s[i]=='m' || s[i]=='M')

            sum+=13;

            if(s[i]=='n' || s[i]=='N')

            sum+=14;

            if(s[i]=='o' || s[i]=='O')

            sum+=15;

            if(s[i]=='p' || s[i]=='P')

            sum+=16;

            if(s[i]=='q' || s[i]=='Q')

            sum+=17;

            if(s[i]=='r' || s[i]=='R')

            sum+=18;

            if(s[i]=='s' || s[i]=='S')

            sum+=19;

            if(s[i]=='t' || s[i]=='T')

            sum+=20;

            if(s[i]=='u' || s[i]=='U')

            sum+=21;

            if(s[i]=='v' || s[i]=='V')

            sum+=22;

            if(s[i]=='w' || s[i]=='W')

            sum+=23;

            if(s[i]=='x' || s[i]=='X')

            sum+=24;

            if(s[i]=='y' || s[i]=='Y')

            sum+=25;

            if(s[i]=='z' || s[i]=='Z')

            sum+=26;

        }

       

        d=0;

        j=1;

        while(j!=0)

        {

            d=d+sum%10;

            sum/=10;

            j++;

            if(sum==0) break;

        }

       

        if(d>=10)

        {

            d = d%10 + (d/10)%10;

        }

        //cout<<"d"<<d<<"\n";

        if(ip%2==1)

         ip1= d;

        else

        {

             ip2=d;

        if(ip1>ip2)

        {

            result=(float)ip2*100/(float)ip1;

        }

        else

        {

            result=(float)ip1*100/(float)ip2;

        }

        printf("%.2f %%\n",result);

        }

    }

    return 0;

}