#include <stdio.h>
int main(){
int a = 10, b = 20;
int result = 0;
result = a + b;
printf("a + b = %d\n", result
); result = a - b;
printf("a - b = %d\n", result
); result = a * b;
printf("a * b = %d\n", result
); result = b % a;
printf("b %% a = %d\n", result
); return 0;
}
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