#include <stdio.h>
int main()
{
    float a, b, c, d, s;
    for (a = 0.1; a < 9.9; a += 0.2)
    {
        for (b=0.4; b < 9.9; b += 0.1)
        {
            for (c=0.7; c < 9.9; c += 0.3)
            {
                s = a + b;
                s += c;
                d = c + a;
                d += b;
                if ( s != d )
                {
                    printf( "a=%f, b=%f, c=%f, a+b+c=%f, c+a+b=%f hex: a=0x%08x b=0x%08x c=0x%08x s=0x%08x d=0x%08x\n", a, b, c, s, d,
			*(int *) &a,*(int *) &b,*(int *) &c,*(int *) &s, *(int *) &d );
                }
            }
        }
    }
}