several nested "for" conditional statement

output this serial alphabetic orders using as many as "for" statements

A...Z(A to Z)
B...A(B to A)
C...B(C to B)
D...C(D to C)
E...D(E to D)
F...E(F to E)
G...F(G to F)
......(H to G)
......
......
......
Z...Y(Z to Y)

You did not ask a question. Please read the homework policy, then provide any code you have (be sure to use code tags) along with specific questions about what you're having trouble with.

So, are you asking how to output those 26 cases with all of them having 26 letter in them and you want to make 26 loops? Think about the problem some more and it may help to think about it if it were just numbers instead of letters.