20BDCBCCBACABACABAACBA
21~25BABCA
26~30CAABC
31~35BDADB
36~40CABAB
41~45CADAC
46~50ABDCC
51~55ABCDC
56~60DBACC
61~65CABDD
66 houses
67 find/to find
68 sure
69 live in
70 growing
20BDCBCCBACABACABAACBA
21~25BABCA
26~30CAABC
31~35BDADB
36~40CABAB
41~45CADAC
46~50ABDCC
51~55ABCDC
56~60DBACC
61~65CABDD
66 houses
67 find/to find
68 sure
69 live in
70 growing