diff --git a/ab.c b/ab.c
new file mode 100644
index 0000000..3bb1711
--- /dev/null
+++ b/ab.c
@@ -0,0 +1,7 @@
+#include<stdio.h>
+#include<math.h>
+int main()
+{
+    printf("hello world");
+}
+
diff --git a/booth.cpp b/booth.cpp
new file mode 100644
index 0000000..35844bc
--- /dev/null
+++ b/booth.cpp
@@ -0,0 +1,66 @@
+#include<iostream>
+#include<fstream>
+#include<stdlib.h>
+
+using namespace std;
+
+class booth{
+    private:
+        float f_id;
+        float wt;
+        float grade;
+        float rate;
+        float price;
+    public:
+        void in(){
+            cout<<"Enter farmer id: ";
+            cin>>f_id;
+            cout<<"Enter weight in quintal of crop: ";
+            cin>>wt;
+            cout<<"Enter its quality(between 1-3): ";
+            cin>>grade;
+            cout<<"Enter rate: ";
+            cin>>rate;
+        }
+        void process(){
+            int x=grade;
+            switch(x){
+                    case 1: price=wt*3/5*rate;
+                            break;
+                    case 2: price=wt*4/5*rate;
+                            break;
+                    case 3: price=wt*rate;
+                            break;
+                    default:cout<<"wrong input of quality ";
+                            break;
+
+            }
+            cout<<"Payment to farmer: "<<price<<endl;
+
+        }
+
+};
+int main(){
+        char a;
+            while(1){
+                system("cls");
+                cout<<"Do you want to enter data(Y/N): ";
+                cin>>a;
+                if(a=='y'||a=='Y')
+                {
+                    booth  b;
+                    b.in();
+                    b.process();
+                    ofstream fout;
+                    fout.open("data.dat",ios::out|ios::binary|ios::app);
+                    fout.write((char*)&b, sizeof (b));
+                    fout.close();
+                }
+                else if(a=='n'||a=='N')
+                    exit(1);
+                else
+                    cout<<"Wrong input, try again";
+                    system("pause");
+            }
+    return 0;
+}