0001239944-05-000029 4 1 20050128 20050131 20050131 DICERBO NICHOLAS A 0001234449 4 34 001-13695 05561253 2835 WEST RIVER ROAD OLEAN NY 14760 7163725731 COMMUNITY BANK SYSTEM INC 0000723188 6021 161213679 DE 1231 5790 WIDEWATERS PKWY DEWITT NY 13214 8007242262 5790 WIDEWATERS PARKWAY DEWITT NY 13214 4 1 edgar.xml PRIMARY DOCUMENT