#include <stdio.h>

int input;
float output;

int main () {
    printf ("Your Input :");
    scanf ("%d",&input);
    // if ((tanya == 'y')||(tanya == 'Y')

    if ((input == 300) || (input == 200) || (input = 100) || (input = 0)) {
        output = 200.00;
        printf ("%f",output);

    }
    if ((input = 1) || (input = 2) || ( input = 3)) {
        output = 2.500;
        printf ("%f",output);
    } else  {
        printf ("Try again");
    }

    return 0;
}