d)crescator:2312500,2513002,3001152,3152112,3251001,
c)descrescator: 53015,51300,51003,35001,31501,13005
ex 18 c)1002,1200,1203,1999,2001,2013,2101
e)1630,3160,6023,6032,6203,6302
f)1125123,1215321,1251321,1321512,1525120,2153123
g)253151,321551,325511,355112,523115,532511,
ex 19 d)7214200,7122400,4722100,4227100,1425722
e)63030,60303,60033,30630,30306
f)7110225,5210721,2512710,1752210,1250127,1015272
g)993453,939453,543399,495933,435993,349953
