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#include<stdio.h>
int main()
{
int a,b, sum, sub, mul;
float dev;
printf("please enter 2 integers a b:"):
scanf ("%d %d",&a, &b);
sum=a+b;
sub=a-b;
mul=a*b;
dev= (float)a/b;
printf("%d+%d=%d\n", a,b,sum);
printf ("%d-%d=%d\n",a,b, sub);
printf ( "%d*%d=%d \n", a,b,mul);
printf ("%d/%d=%.2f\n",a,b,dev);
}