求助

#include<cstdio>
#include<cstring>
int main(){
	char str[201],key[8][5]={"abc","def","ghi","jkl","mno","pqrs","tuv","wxyz"};
	fgets(str,201,stdin);
	for(int i=0,l=strlen(str);i<l;i++)
		if(str[i]=='\n')str[i]=0;
	int ans=0;
	for(int i=0,l=strlen(str);i<l;i++){
		char*x;
		ans++;
		for(int j=0;j<8;j++)
			if(x=strchr(key[j],str[i]))
				ans+=x-key[j];
	}
	printf("%d\n",ans);
	return 0;
}