#include <stdlib.h>

// SAD
// OK: sum = 4300		// -O0, -O1
// FAIL sum = 4044		// -02, -O3

static unsigned char s_data1[] = 
{
	53,53,53,53,53,53,53,53,
	84,84,84,84,84,84,84,84,
	101,101,101,101,101,101,101,101,
	49,49,49,49,49,49,49,49,
	44,44,44,44,44,44,44,44,
	46,46,46,46,46,46,46,46,
	43,43,43,43,43,43,43,43,
	101,101,101,101,101,101,101,101
};

static unsigned char s_data2[] = 
{
	73,82,114,155,154,154,151,157,
	118,123,144,157,160,168,156,162,
	73,104,155,159,154,158,156,159,
	52,58,138,161,158,168,162,167,
	48,56,108,164,155,160,157,166,
	46,54,88,165,159,164,159,157,
	44,48,81,161,172,169,169,164,
	88,97,84,94,129,125,142,147
};

int my_testfunc(void) 
{                                                   
    int sum = 0, x, y;
	
	unsigned char *data1 = s_data1;
	unsigned char *data2 = s_data2;
	
    for (y = 0; y < 8; y++)                   
    {                                               
        for (x = 0; x < 8; x++)
        {         
           sum += abs(data1[x] - data2[x]);
        }

        data1 += 8;
        data2 += 8;
    }                                         
	
    return sum;                                   
}