scrie predese sorul si sucesorul fiecarui nr 42321;99999; 30 000;120000; 31300.

Răspuns :

42321=pred-42320 suc 42322
99999=pred-99998 suc-100000
30000=pred-29999 suc-30001
120000=pred-119999 suc-120001
31300=pred-31299 suc-31301
42320-42322
99998-100000
29999-30001
119999-120001
31299-31301