#include<stdio.h>
#include<limits.h> // no la so thuc nen ko dung limts vi limits laf dung cho so nguyen
#include<float.h>

double inputCheck(char msg[], char error[], double min, double max){
	double num;
	int check; 
	char c;
	do{
		printf("%s",msg);
		check=scanf("%lf%c", &num, &c);//Returns the value of an integer
		fflush(stdin);
        if(check!=2||c != '\n' || num<=min || num>max){
            printf("%s",error);
            fflush(stdin);//Delete buffer
            check=0; //input is a character
        }
        else{
            check=1; //input is a number
        }
    }while(check==0);
    return num;
	
}

int main(){
	double tienN = inputCheck("No bao nhieu ma?", "Dien lai di ma oi.", 0.0, DBL_MAX);
	double phanT = inputCheck("Bao nhieu phan tram?", "Dien lai di ma.", 0.0, DBL_MAX);
	double traT = inputCheck("Moi thang tra bao tien?", "Dien lai di ma.", 0.0, DBL_MAX);
	phanT=phanT/12;
	int thang=0;
	printf("Month\tPayment   amount  owed\n");
	do{
		tienN = tienN + tienN*(phanT/100); // goc + lai sau 1 month.
		if(tienN>traT){
			tienN=tienN-traT;
		}else{
			traT=tienN;
			tienN=0;
		}
		thang++;
		printf("%d\t%0.2lf  %0.2lf\n",thang ,traT, tienN);	
	}while(tienN!=0);
  	

	return 0;
}