#include <stdio.h>
#include <string.h>

int main(void) {
    int income, taxLength, i;
    char strTax[100], *taxPointer;
    double tax;
    printf("총 소득(원)을 입력하세요 : ");
    scanf("%d", &income);

    if(income <= 10000000) {
        tax = income * 0.08;
    }
    else if(income > 10000000 && income <= 40000000) {
        tax = income * 0.17;
    }
    else if(income > 40000000 && income <= 80000000) {
        tax = income * 0.26;
    }
    else {
        tax = income * 0.35;
    }

    tax = (int)(tax + 0.5);
    tax = ((int)tax / 10) * 10;

    sprintf(strTax, "%d", (int)tax);
    taxLength = strlen(strTax);
    taxPointer = strTax;
    printf("%c", taxPointer);
    printf("최종 부과세금 : ");
    for(i = taxLength; i > 0;) {
        printf("%c", *taxPointer++);
        i--;
        if(i > 0 && i % 3 == 0) {
            printf(",");
        }
    }
    printf("\n");
}