T
trantungthien


5^2.6^11.16^2+12^6.15^6.6^2/2.6^12.10^4-81^2.960^3
rut gon phan so tren
annh em thien tai hoc mai hay cuu em[-O<[-O<[-O<[-O<[-O<[-O<[-O<
ai giup duoc cam on nhieu
^
^^
^^
^^
^^
^^
^
rut gon phan so tren
annh em thien tai hoc mai hay cuu em[-O<[-O<[-O<[-O<[-O<[-O<[-O<
ai giup duoc cam on nhieu
^