#include <stdio.h>

void main(void){
    char nesw[10] = "NESW";
    char a = 'a';
    scanf("%c\n",&a);
    char b = 'b';
    scanf("%c",&b);
    int count = 0;
    for(int i = 0 ; i < 4 ; i++){
        if(nesw[i] == a){
            count = i;
        }
    }
    int rotation = 0;
    while(a != b){
        count++;
        if(count == 4){
            count = 0;
        }
        rotation++;
        a = nesw[count];
        
    }
    
    
    printf("%d",rotation);
}