#include<stdio.h>
#include<string.h>
int k;
int main()
{
	char dic[30][20]={"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", "twenty","a","both","another","first","second","third"};
	char a[10];
	int i,j,d[6]={0};
	int c[6]={0,1,2,3,4,5};
	int di[30]={0,1,4,9,16,25,36,49,64,81,00,21,44,69,96,25,56,89,24,61,0,1,4,1,1,4,9};
	
	for(i = 0; i < 6; i ++){
		scanf("%s",&a);
		for(j = 0; j < 26; j ++){
			if(strcmp( a , dic[j]) == 0)
			{
			    d[ c[k] ] = di[j];
			    k ++;
			    break;
			} 
		}
	}
	
	if(k == 0) {
		printf("0");
		return 0;
	}else{
	
	for(i = 0 ; i < 6 ; i ++){
		for(j = 0 ; j < 5 ; j ++){
			if(d[j]>d[j + 1]){
				k = d[j + 1];
				d[j + 1] = d[j];
				d[j] = k;
			}
		}
	}
	int n = 0;
	
	for(i = 0 ; i < 6 ; i ++){
		if(d[i] == 0) continue;
		else{
			if(d[i - 1] == 0 && n == 0 &&d[i] > 0 &&d[i] < 10){
			    	printf("%d",d[i]);
			    	n++;
			}
			else{
			
			if(d[i] > 0 && d[i] < 10) 
			      printf("0%d",d[i]);
			else printf("%d",d[i]);
		    }
		}
	}
}
	

	return 0;
}