a,b=*input(),
x=a in'ah'
y=b in'18'
print(8-x*3-y*3+x*y)#include <iostream>
#include <algorithm>
#include <fstream>
using namespace std;
int n,x, e, d, k, j, h, w, f, r, t, l, o, p, i1, i2,y;
char c[10000];
int main()
{
//ifstream cin("input.txt");
//ofstream cout("output.txt");
cin >> c;
if((c[0]=='a' or c[0]=='h') and (c[1]=='1' or c[1]=='8')) cout<<"3";
if((c[0]=='a' or c[0]=='h') and (c[1]!='1' and c[1]!='8')) cout<<"5";
if((c[0]!='a' and c[0]!='h') and (c[1]=='1' or c[1]=='8')) cout<<"5";
if((c[0]!='a' and c[0]!='h') and (c[1]!='1' and c[1]!='8')) cout<<"8";
return 0;
}
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