C
c
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#include <stdio.h>
#include <math.h>
#include <string.h>
int main() {
int x;
int y;
int add;
int sub;
char input[10];
char a;
char s;
scanf("%d",&x);
scanf("%d",&y);
scanf("%s\n", input);
add = (x+y);
sub = (x-y);
if (strcmp(input,"a")==0){
printf("%d + %d = %d\n", x, y, add);
}
else if (strcmp(input,"s")==0){
printf("%d - %d = %d\n", x, y, sub);
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