function duongam(n)

for i=1:n

a(i)=input('nhap gia tri cua i ')

end

b(1)=a(1)

for i =1:n

j=i-1;

b(i)=a(i)

while j<0&(a(i)<b(j))

b(j+1)= b(j)

b(j)=a(i)

j=j-1;

end

end

while b(1)>0

x=b(1)

for i=2:n

b(i-1)=b(i)

end

b(n)=x

end

return;