OFFSET
0,1
EXAMPLE
33 = 12 + 21 = 21 + 12 = 30 + 03, 176 = 79 + 97 = 88 + 88 = 97 + 79, 383 = 142 + 241 = 241 + 142 = 340 + 043.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Klaus Brockhaus, Jun 13 2002
STATUS
approved