TLE error for this code helppppppp

#1

#include
using namespace std;
int main() {

while(true)
{
	char ch;
	cin>>ch;
	if(ch=='X' || ch=='x')
	{
		break;
	}
	else
	{
		
		int n;
		int m;
		cin>>n>>m;
		if(ch=='+')
		{
			cout<<n+m<<endl;
		}
		else if(ch=='*')
		{
			cout<<n*m<<endl;
		}
		else if(ch=='/')
		{
			cout<<n/m<<endl;
		}
		else if(ch=='-')
		{
			cout<<n-m<<endl;
		}
		else if(ch=='%'){
			cout<<n%m<<endl;
		}
		else{
			cout<<"Invalid operation. Try again."<<endl;
		}
	}
}

}

#2

hello @shyama

read only if u get valid operator.

#3

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