#include<iostream>
using namespace std;
int main()
{
int p,t;
float r,A;
cout<<"Plese enter the intial principal balance ="<<p<<endl;
cin>>p;
cout<<"Plese enter the annual interest rate ="<<r<<endl;
cin>>r;
cout<<"Plese enter the time (in months) ="<<t<<endl;
cin>>t;
A=p*(1+r*t);
cout<<"The simple intrest rate is="<<A<<endl;
return 0;
}