#include<bits/stdc++.h>
using namespace std;

int main(){
	int a,al=0,cd=2;
	char b[10000];
	cin>>a;
	int j=1;
	for(int i=0;i<=a;i++){
		gets(b);
		char f;
		int c=0,d=0;
		if(b[0]=='a'||b[0]=='b'||b[0]=='c'){
			f=b[0];	
			al=1;
		} 
		//cout<<b;
		if(f=='a'){
			if(al==1) j=2; 
			else j=0;
			//cout<<b[j]<<endl;
			while(b[j]!=' '){
				c+=b[j]-'0';
				c*=10;
				//cout<<"C"<<c<<" "<<j<<endl;
				j++;
				cd++;
			}
			j++;
			while(b[j]!='\0'){
				d+=b[j]-'0';
				d*=10;
			//	cout<<d<<" "<<j<<endl;
				j++;
				cd++;
			}
			int e=(c/10)+(d/10);
			while(e!=0){
				e/=10;
				cd++;
			}
			printf("%d+%d=%d\n%d\n",c/10,d/10,(c+d)/10,cd);
			al=0;
		}
		if(f=='b'){
			if(al==1) j=2; 
			else j=0;
			//cout<<b[j]<<endl;
			while(b[j]!=' '){
				c+=b[j]-'0';
				c*=10;
				//cout<<"C"<<c<<" "<<j<<endl;
				j++;
				cd++;
			}
			j++;
			while(b[j]!='\0'){
				d+=b[j]-'0';
				d*=10;
			//	cout<<d<<" "<<j<<endl;
				j++;
				cd++;
			}
			int e=(c/10)-(d/10);
			if(e<0) cd++;
			while(e!=0){
				e/=10;
				cd++;
			}
			printf("%d-%d=%d\n%d\n",c/10,d/10,(c-d)/10,cd);
			al=0;
		}
		if(f=='c'){
			if(al==1) j=2; 
			else j=0;
			//cout<<b[j]<<endl;
			while(b[j]!=' '){
				c+=b[j]-'0';
				c*=10;
				//cout<<"C"<<c<<" "<<j<<endl;
				j++;
				cd++;
			}
			j++;
			while(b[j]!='\0'){
				d+=b[j]-'0';
				d*=10;
			//	cout<<d<<" "<<j<<endl;
				j++;
				cd++;
			}
			int e=(c/10)*(d/10);
			while(e!=0){
				e/=10;
				cd++;
			}
			printf("%d*%d=%d\n%d\n",c/10,d/10,(c*d)/100,cd);
			al=0;
		}
		cd=2;
	}
}

样例没有问题，测试点1也没有，看是全WA，求解555