print("ABCDEFGHIJKLMNOPQR")
print("BABCDEFGHIJKLMNOPQ")
print("CBABCDEFGHIJKLMNOP")
print("DCBABCDEFGHIJKLMNO")
print("EDCBABCDEFGHIJKLMN")
print("FEDCBABCDEFGHIJKLM")
print("GFEDCBABCDEFGHIJKL")
print("HGFEDCBABCDEFGHIJK")
print("IHGFEDCBABCDEFGHIJ")
print("JIHGFEDCBABCDEFGHI")

print("ABCDEFGHIJKLMNOPQR") print("BABCDEFGHIJKLMNOPQ") print("CBABCDEFGHIJKLMNOP") print("DCBABCDEFGHIJKLMNO") print("EDCBABCDEFGHIJKLMN") print("FEDCBABCDEFGHIJKLM") print("GFEDCBABCDEFGHIJKL") print("HGFEDCBABCDEFGHIJK") print("IHGFEDCBABCDEFGHIJ") print("JIHGFEDCBABCDEFGHI")

bsakafcbhsaj.

print("ABCDEFGHIJKLMNOPQR")
print("BABCDEFGHIJKLMNOPQ")
print("CBABCDEFGHIJKLMNOP")
print("DCBABCDEFGHIJKLMNO") print("EDCBABCDEFGHIJKLMN") print("FEDCBABCDEFGHIJKLM") print("GFEDCBABCDEFGHIJKL") print("HGFEDCBABCDEFGHIJK") print("IHGFEDCBABCDEFGHIJ") print("JIHGFEDCBABCDEFGHI")

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