请认真考虑下面的程序：
#include <iostream>
using namespace std;
int main()
{
char ch;
int ct1, ct2;
ct1 = ct2 = 0;
while ((ch = cin.get()) != '$')
{
cout << ch;
ct1++;
if (ch = '$')
ct2++;
cout << ch;
}
cout <<"ct1 = " << ct1 << ", ct2 = " << ct2 << "\n";
return 0;
} 假设输入如下（请在每行末尾按回车键）：
Hi!
Send $10 or $20 now!
Send $10 or $20 now!
则输出将是什么（还记得吗，输入被缓冲）？
H$i$!$
$Send $10 or $20 now!
S$e$n$d$ $ct1 = 9, ct2 = 9