For Floor_Carpet 's challenge
oh boy here we go to checkered things again
h a
h a
3ไปถใในใฆใฎใณใกใณใใ่ฆใ
ใณใกใณใใใใซใฏใญใฐใคใณใๅฟ
่ฆใงใ
ใญใฐใคใณ
ใใฎใฆใผใถใๆ็จฟใใไปใฎใขใใก
ใขใใชใใใฆใณใญใผใ
ใขใใชใงใขใใกใๆใใฆๆ็จฟใใใ๏ผ
