SQL & PL/SQL :: Fetch All Three Address Line With Max Length Of 40 In Each Columns

there are 3 columns as Address1(max data length 80) , Address2(max data length 80), Address3 (max data length 80)..I need to fetch all the three address line with max length of 40 in each columns after concatenate address1,address2,address3

E.g Field data_length
Address1 49
Address2 32
Address3 33

now I need to concate all the char and split in 40 char per field i.e. 49+32+33 = 114

Field data_length
Address1 40
Address2 40
Address3 24