Basic programming topics set K 7-13 day candle (15 points)

#include <stdio.h>
int main()
{
    float Open, High, Low, Close;
    scanf("%f %f %f %f", &Open, &High, &Low, &Close);
    if (Close < Open)
    {
        if (Low < Close)
        {
            if (High > Open)
            {
                printf("BW-Solid with Lower Shadow and Upper Shadow");
            }
            else
            {
                printf("BW-Solid with Lower Shadow");
            }
        }
        else
        {
            if (High > Open)
            {
                printf("BW-Solid with Upper Shadow");
            }
            else
            {
                printf("BW-Solid");
            }
        }
    }
    else if (Close == Open)
    {
        if (Low < Close)
        {
            if (High > Open)
            {
                printf("R-Cross with Lower Shadow and Upper Shadow");
            }
            else
            {
                printf("R-Cross with Lower Shadow");
            }
        }
        else
        {
            if (High > Open)
            {
                printf("R-Cross with Upper Shadow");
            }
            else
            {
                printf("R-Cross");
            }
        }
    }
    else
    {
        if (Low < Open)
        {
            if (High > Close)
            {
                printf("R-Hollow with Lower Shadow and Upper Shadow");
            }
            else
            {
                printf("R-Hollow with Lower Shadow");
            }
        }
        else
        {
            if (High > Close)
            {
                printf("R-Hollow with Upper Shadow");
            }
            else
            {
                printf("R-Hollow");
            }
        }
    }
    return 0;
}