#include <stdio.h>

int main(void) {
    // your code goes here
    int a,b;
    scanf("%d%d",&a,&b);
    printf("a = %d\n",a);
    printf("-a = %d\n",-a);
    printf("a + b= %d\n",a + b);
    printf("a*b = %d\n",a*b);
    printf("a/b=%d\n",a/b);
    printf("a%b=%d\n",a%b);
    printf("a的个位%d1.",a);
    return 0;
}