#include <iostream>
using namespace std;
 
int main() {
	// your code goes here
	return 0;
}

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#include <stdio.h>

int main() {
    
    int a, b;
    printf("Nhap 2 so: ");
    scanf("%d%d", &a, &b);
    printf("Tich = %d\n", a*b);
    if(b != 0){
        printf("Thuong = %d\n", a/b);
        printf("So du = %d\n", a%b);
    } else {
        printf("Khong the chia cho 0!\n");
    }

    
    char ten[50];
    int nam_sinh, tuoi;
    printf("Nhap ten: ");
    scanf("%s", ten);
    printf("Nhap nam sinh: ");
    scanf("%d", &nam_sinh);
    tuoi = 2025 - nam_sinh;
    printf("SV ten %s, %d tuoi\n", ten, tuoi);

    
    int n;
    printf("Nhap so nguyen: ");
    scanf("%d", &n);
    if(n == 0) printf("So 0\n");
    else if(n % 2 == 0) printf("So chan\n");
    else printf("So le\n");

    
    float diem;
    printf("Nhap diem (0-10): ");
    scanf("%f", &diem);
    if(diem >= 9) printf("Hoc luc xuat sac\n");
    else if(diem >= 8) printf("Hoc luc gioi\n");
    else if(diem >= 6.5) printf("Hoc luc kha\n");
    else if(diem >= 5) printf("Hoc luc trung binh\n");
    else if(diem >= 3.5) printf("Hoc luc yeu\n");
    else printf("Hoc luc kem\n");

    
    int x, y, temp;
    printf("Nhap a, b: ");
    scanf("%d%d", &x, &y);
    temp = x; x = y; y = temp;
    printf("Sau khi doi cho: a = %d, b = %d\n", x, y);

    return 0;
}