laba ot urca

#include <stdio.h>
#include <comio.h>


int main(void)
{
    int a, b, c, d, t, min, max;
    printf("vvedi 4 chisla\n");
    scanf("%d %d %d %d", &a, &b, &c, &d);
    if ((a + b + c + d) / 2 > 0)
    {
        if (a > 0)
            t = a;
        else;
        if (b > 0)
            t = b;
        else;
        if (c > 0)
            t = c;
        else;
        if (d > 0)
            t = d;
        else;
        if (t > 0)
        {
            min = t;
            if (a > 0)
                if (a < min)
                    min = a;
                else;
            else;
            if (b > 0)
                if (b < min)
                    min = b;
                else;
            else;
            if (c > 0)
                if (c < min)
                    min = c;
                else;
            else;
            if (d > 0)
                if (d < min)
                    min = d;
                else;
            else;

        }
        else;
        if (min == a)
        {
            min = min*min;
            printf("%d %d %d %d\n", min, b, c, d);
        }
        else
            if (min == b)
            {
                min = min*min;
                printf("%d %d %d %d\n", a, min, c, d);
            }
            else
                if (min == c)
                {
                    min = min*min;
                    printf("%d %d %d %d\n", a, b, min, d);
                }
                else
                    if (min == d)
                    {
                        min = min*min;
                        printf("%d %d %d %d\n", a, b, c, min);
                    }
                    else;
    }
    else
    {
        if (a > b)
        {
            if (a > c)
            {
                if (a > d)
                    max = a;
                else
                    max = d;
            }
            else
            {
                if (c > d)
                    max = c;
                else
                    max = d;
            }
        }
        else
        {
            if (b > c)
            {
                if (b > d)
                    max = b;
                else
                    max = d;
            }
            else
            {
                if (c > d)
                    max = c;
                else
                    max = d;
            }
        }
        if (a < 0)
            a = a - max;
        else;
        if (b < 0)
            b = b - max;
        else;
        if (c < 0)
            c = c - max;
        else;
        if (d < 0)
            d = d - max;
        else;
    }
    return 0;
}