#include<iostream>
#include<string>
#include<cmath>
#include<cstdio>
using namespace std;
const int N=210;
int main() {
	string s;
	int n,cl;
	cin>>n;
	getchar();
	for(int i=1;i<=n;i++)
	{
		s.clear();
		getline(cin,s);
		int number=0,num[2]={0,0};
		for(int j=0;j<s.length();j++)
		{
			if(s[j]==' ')
			{
				number++;
				continue;
			}
			if(s[j]>='a')
			{
				number--;
				cl=s[j]-'a';
			}
			else
				num[number]=num[number]*10+s[j]-'0';
		}
		if(cl==0)printf("%d+%d=%d\n%d\n",num[0],num[1],num[0]+num[1],(int)log10(num[0]+num[1])+(int)log10(num[0])+(int)log10(num[1])+5);
		if(cl==1)printf("%d-%d=%d\n%d\n",num[0],num[1],num[0]-num[1],(num[0]==num[1]?1:(num[0]>num[1]?(int)log10(num[0]-num[1]):(int)log10(num[1]-num[0])+1))+(int)log10(num[0])+(int)log10(num[1])+5);
		if(cl==2)printf("%d*%d=%d\n%d\n",num[0],num[1],num[0]*num[1],(int)log10(num[0]*num[1])+(int)log10(num[0])+(int)log10(num[1])+5);
	}
}