#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;
}
