# include & ltiostream & gt
# include & lt string & gt
Use? Namespace? std
String? Num[]={ "zero", "one", "two", "three", "four", "five", "six", "seven", "eight" and "nine"};
Invalid? Output (int? k)
{
if(k==0)? Return? ;
Output (k/10);
cout & lt& ltnum[k % 10]& lt; & lt"?" ;
}
int? Master ()
{
do
{
int? a[2]= { 0 };
int? k = 0;
int? t;
String? tmp
And (CIN >; & gttmp)
{
if(tmp=="= ")? Break;
if(tmp=="+"? ||? tmp=="-"? ||? tmp=="*"||? tmp=="/")
{
if(tmp=="+")? t = 0;
if(tmp=="-")? t = 1;
if(tmp=="* ")? t = 2;
if(tmp=="/")? t = 3;
k++;
}
other
{
int? Me;
for(I = 0; ; i++)? {? if(num[i]==tmp)? Break; }
a[k]=a[k]* 10+? Me;
}
}
if(a[0]= = 0 & amp; & ampa[ 1]==0)? Break;
if(t==0)? k = a[0]+a[ 1];
if(t== 1)? k = a[0]-a[ 1];
if(t==2)? k = a[0]* a[ 1];
if(t==3)? k = a[0]/a[ 1];
if(k==0)? Cout & lt& lt "zero"<& ltendl
Or what? Output (k);
}while (true);
Return? 0;
}
1. What is the level of Sichuan Normal University?
It belongs to the upper-middle lev