在你的情况下，我相信你要计算的价值根据门票类型和学生人数。
这就是我们可以做到的：

#include <stdio.h>

int main()
{
   char ticketType;
   int totalBill, studAmount, ticketType_R= 6500, ticketType_G= 7500;

    printf("Enter the ticket type (R/G): "); // Input ticket type
    scanf("%c", &ticketType);

    // Use of Sequential if-else statement to calculate the total bill
    if (ticketType == 'R')
    {
        printf("Enter the number of students: ");
        scanf("%d", &studAmount);
        totalBill = ticketType_R * studAmount;
        printf("Your ticket type is R and your total bill is: %d", totalBill);
    }
    else if (ticketType == 'G')
    {
        printf("Enter the number of students: ");
        scanf("%d", &studAmount);
        totalBill = ticketType_G * studAmount;
        printf("Your ticket type is G and your total bill is: %d", totalBill);
    }
    else
    {
        printf("Invalid ticket type");
    }

    // Total Students 
    printf("\nTotal number of students: %d", studAmount);

    return 0;
}

如果你有兴趣用Python来做这件事，那就是你要做的。

ticket_type = input("Enter the ticket type (R/G): ")
stud_amount = int(input("Enter the number of students: "))

if ticket_type == "R":
    total_bill = 6500 * stud_amount
    print("Your ticket type is R and your total bill is: ", total_bill)
elif ticket_type == "G":
    total_bill = 7500 * stud_amount
    print("Your ticket type is G and your total bill is: ", total_bill)
else:
    print("Invalid ticket type")

print("Your Total number of students: ", stud_amount)