pre1 "123456", canary ok pre2 "1234567", canary ok pre3a "1234567", exception occurred, canary ok pre3b "8", canary ok pre4a "1234567", exception occurred, canary ok pre4b "89", canary ok 1 yyyyyyyyyyyyyyyyyyyy 2 abcxxx 3 abcxxx 4 aaaaaaaa 5 aaaaaaaa 6 aabbccbb 7 dddwww 8 dddwww 9 dddwww 10 aaaaaaaa 11 wwwwwwww 12 wwwwwwww 13 wwwwwwww 14 rc=1, cccc 15 rc=0, q 1 yyyyyyyyyyyyyyyyyyyy 2 abcxxx 3 abcxxx 4 aaaaaaaa 5 aaaaaaaa 6 aabbccbb 7 dddwww 8 dddwww 9 dddwww 10 aaaaaaaa 11 wwwwwwww 12 wwwwwwww 13 wwwwwwww 14 cccc 15 q a a -1 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 255 15 15 15 3.5 345.6 345.6 345.6 3.5 345.6 345.6 345.6 3.5 345.6 345.6 345.6 3.5+3.5i 345.6+345.6i 345.6+345.6i 345.6+345.6i 3.5+3.5i 345.6+345.6i 345.6+345.6i 345.6+345.6i 3.5+3.5i 345.6+345.6i 345.6+345.6i 345.6+345.6i