#include <stdio.h>

int main() {
    int a = 3;
    // 전위 연산자
    printf("%d\n", ++a);
    printf("%d\n", a);

    printf("%d\n", --a);
    printf("%d\n", a);

    // 후위 연산자
    printf("%d\n", a++);
    printf("%d\n", a);

    printf("%d\n", a--);
    printf("%d\n", a);

    int n1 = 1;
    int n2 = 5;

    printf("%d\n", n1++);
    printf("%d\n", n1);
    printf("%d\n", --n2);
    printf("%d\n", n2);

    int number = 3;

    printf("%d\n", number++);
    printf("%d\n", ++number);
    printf("%d\n", number--);
    printf("%d\n", --number);

    //관계연산자
    
    int n3;
    int n4;
    scanf("%d %d", &n3 ,&n4);
    printf("%d\n", n3>n4);
    
    int n5;
    int n6;
    scanf("%d %d", &n5 ,&n6);
    printf("%d\n", n5==n6);
    
    int n7 = 100;
    int n8 = 200;
    
    printf("%d\n", n7 == 100 || n2 != 200);
    printf("%d\n", n7 < 200 && n8 > 300);
    printf("%d\n", n7 >= 0 && n7 <= 100);
    printf("%d\n", n7 < 0 || n8 >= 150);
    
    int n9 = 32;
    int n10 = 7;
    float f1;
    
    f1 = n9 / n10;
    printf("%f\n", f1);
    
    f1 = (float)n9 / n10;
    printf("%.21f\n", f1);
    
    int n11;
    int n12;
    scanf("%d %d", &n11 ,&n12);
    printf("%d\n", n11+n12);    
    printf("%d\n", n11-n12);
    printf("%d\n", n11*n12);
    printf("%.2f", (float)n11/(float)n12);
    
    return 0;
}