这系统真的拉跨，说zero+zero=是结束符，提交又不给了

#include <stdio.h>
#include <string.h>

int shi(char a[],char b[],char arr[][11]){
	int sum;
	for(int i=0;i<10;i++){
		if(strcmp(a,arr[i])==0)sum=i;
	}
		for(int i=0;i<10;i++){
		if(strcmp(b,arr[i])==0)sum=sum*10+i;
	}
	return sum;
}
int ge(char a[],char arr[][11]){
	int sum;
	for(int i=0;i<10;i++){
		if(strcmp(a,arr[i])==0)sum=i;
	}
	return sum;
}


int main(){
char arr[11][11]={"zero","one","two","three","four","five","six","seven","eight","nine"};
char a[10],a1[10],b[10],b1[10];int m,n;
while(scanf("%s %s",a,a1)!=EOF){
	if(strcmp(a1,"+")==0){
		m=ge(a,arr);
		scanf("%s %s",b,b1);
		if(strcmp(b1,"=")==0)
			n=ge(b,arr);
		else {
			n=shi(b,b1,arr);
			scanf("%s",b1);
		}
	}
	else {
		m=shi(a,a1,arr);
		scanf("%s %s %s",a1,b,b1);
		if(strcmp(b1,"=")==0)
			n=ge(b,arr);
		else {
			n=shi(b,b1,arr);
			scanf("%s",b1);
		}
	}
	if(m+n==0)break;
	printf("%d\n",m+n);
}
	return 0;
}