#include <iostream>
#include <math.h>
#include <typeinfo>
#include<math.h>
#include <cstdlib>
using namespace std;
int strisnum(string s)
{
    string::iterator it;
    it = s.begin();
    if (*it<'0' || *it>'9')
        return 0;

    return 1;
}
int main() {
	int n,count,a1=0,a2=0,flag=1;
	string s1,s;
    string::iterator it;
	char temp,f[50],k;
	cin>>n;
	cin.ignore();
	for(int i=0;i<n;i++){
		getline(cin,s1);
		if(!strisnum(s1)) temp=s1[0];
		f[i]=temp;
		s+=s1;
		s+='\n';
    }
	for(int j=0;j<s.size();j++){
	
		while(s[j]!='\n'){
			k=s[j];
		
			if(k>='a'&&k<='c') {
			   temp=s[j];
			   flag=1;
	        }else{
				j-=2;
				flag=0;
	        }
			if(temp=='a'){
				count=0;
				int c1=0;
				for(j+=2;s[j-1]!='\n'||!flag;j++){
					flag=1;
					k=s[j];
					if(k==' '||s[j]=='\n') {
						int c2=c1;
						int k2=j;
						for(int i=0;c2>0;c2--){
							char t1=s[--k2];
							int num=t1-'0';
							a1+=pow(10,i)*num;
							i++;
						}
						a2+=a1;
					    if(s[j]!='\n') {
						   c1=0;
						   a1=0;
					       cout<<'+';
						}
				    }
					else {
						c1++;
					    cout<<s[j];
					}
					
					count++;
				}
				j--;
				cout<<"="<<a2<<endl;
				while(a2){
					a2/=10;
					count++;
				}
				cout<<count<<endl;
				a2=0;
				a1=0;					    
			}
			if(temp=='c'){
				count=0;
				int c1=0;
				int a2=1;
				for(j+=2;s[j-1]!='\n'||!flag;j++){
					flag=1;
					k=s[j];
					if(k==' '||s[j]=='\n') {
						int c2=c1;
						int k2=j;
						for(int i=0;c2>0;c2--){
							char t1=s[--k2];
							int num=t1-'0';
							a1+=pow(10,i)*num;
							i++;
						}
						a2*=a1;
					    if(s[j]!='\n') {
						   c1=0;
						   a1=0;
					       cout<<'*';
						}
				    }
					else {
						c1++;
					    cout<<s[j];
					}
					
					count++;
				}
				j--;
				cout<<"="<<a2<<endl;
				while(a2){
					a2/=10;
					count++;
				}
				cout<<count<<endl;
				a2=0;
				a1=0;			
			}
			if(temp=='b'){
				count=0;
				int c1=0;
				int a2=0;
				int flag2=1;
				for(j+=2;s[j-1]!='\n'||!flag;j++){
					flag=1;
					k=s[j];
					if(k==' '||s[j]=='\n') {
						int c2=c1;
						int k2=j;
						for(int i=0;c2>0;c2--){
							char t1=s[--k2];
							int num=t1-'0';
							a1+=pow(10,i)*num;
							i++;
						}
						flag2--;
						if(flag2==0){
							a2=a1;
						}else{
							a2-=a1;
						}
					   
					    if(s[j]!='\n') {
						   c1=0;
						   a1=0;
					       cout<<'-';
						}
				    }
					else {
						c1++;
					    cout<<s[j];
					}
					
					count++;
				}
				j--;
				cout<<"="<<a2<<endl;
				if(a2<0) count++;
				while(a2){
					a2/=10;
					count++;
				}
				cout<<count<<endl;
				a2=0;
				a1=0;			
			}
        }

    }
}