Overflow-[OBI]

#include <stdio.h>

int main()
{
    int A, B, result, maximo;
    char carac;

    scanf("%d", &maximo);
    scanf("%d %c %d", &A, &carac, &B);
    if(carac == '+') result=A+B;
    else result=A*B;
    if(result>maximo) printf("OVERFLOW");
    else printf("OK");

return 0;
}