Xin chao cac ban hoc sinh tren khap moi mien To Quoc, toi la Tran Duy Anh, toi den tu Hai Phong, nay toi se dua cho cac ban mot bai toan nhu sau, cac ban hay lam nhe
Viet cac chu cai HAI PHONG thanh cac day H,A,I,P,H,O,N,G , biet H,A bang ba mau cam,tim,do,biet chu H la mau xanh. Hoi chu thu 2000 mau gi