> #include<iostream>
> #include<cstdlib>
> #include<cstring>
> using namespace std;
> int main()
> {
> 	int max,j,score=0;
> 	long int i=0;
> 	char a[20];
> 	while(cin>>a)
> 	{
> 		max=0;
> 		if(a[0]=='.')break;
> 		if(i>40000)exit(0);
> 		for(j=0;j<20;j++)
> 		{
> 			if(a[j]=='e'||a[j]=='s'||a[j]=='i')
> 				max=max+1;
> 			if(a[j]=='a'||a[j]=='r'||a[j]=='t'||a[j]=='n')
> 				max=max+2;
> 			if(a[j]=='l'||a[j]=='o')
> 				max=max+3;
> 			if(a[j]=='c'||a[j]=='d'||a[j]=='u')
> 				max=max+4;
> 			if(a[j]=='b'||a[j]=='g'||a[j]=='h'||a[j]=='m'||
> 				a[j]=='p'||a[j]=='y')
> 				max=max+5;
> 			if(a[j]=='w'||a[j]=='f'||a[j]=='v'||a[j]=='k')
> 				max=max+6;
> 			if(a[j]=='q'||a[j]=='z'||a[j]=='x'||a[j]=='j')
> 				max=max+7;
> 			if(score<max)score=max;
> 		}
> 		i++;
> 	}
> 	cout<<score;
> 	return 0;
> }