大佬看看哪错了 只得了十分

string a;
getline(cin , a);
int sum = 0;
for(int i = 0 ; i < a.length() ; i++){
	if(a[i] == ' '){
		sum++;
	}else if(a[i] == 'a'){
		sum++;
	}else if(a[i] == 'd'){
		sum++;
	}else if(a[i] == 'g'){
		sum++;
	}else if(a[i] == 'j'){
		sum++;
	}else if(a[i] == 'm'){
		sum++;
	}else if(a[i] == 'p'){
		sum++;
	}else if(a[i] == 't'){
		sum++;
	}else if(a[i] == 'w'){
		sum++;
	}else if(a[i] == 'b'){
		sum += 2;
	}else if(a[i] == 'e'){
		sum += 2;
	}else if(a[i] == 'h'){
		sum += 2;
	}else if(a[i] == 'k'){
		sum += 2;
	}else if(a[i] == 'n'){
		sum += 2;
	}else if(a[i] == 'q'){
		sum += 2;
	}else if(a[i] == 'u'){
		sum += 2;
	}else if(a[i] == 'x'){
		sum += 2;
	}else if(a[i] == 's'){
		sum += 4; 
	}else if(a[i] == 'z'){
		sum += 4;
	}else {
		sum += 3;
	}
}
cout << sum;
return 0;

}