# include<>
int main(void)
{
int a, b, c, d,m1,m2,n1,n2,m,n;
printf("enter 4 num:");
scanf_s("%d%d%d%d", &a, &b, &c, &d);
if (a > b)
m1 = a, n1 = b;
else
m1 = b, n1 = a;
if (c > d)
m2 = c, n2 = d;
else
m2 = d, n2 = c;
if (m1 > m2)
m = m1;
else
m = m2;
if (n1 > n2)
n = n2;
else
n = n1;
printf("largest is :%d", m);
printf("smallest is :%d", n);
}