RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG