The next 3 lines will be output to stdout.
Test into "stdout" ABCDEFGHIJKLMNOP abcdefghijklmnop
AAAAAAAAAAAAAAAA aaaaaaaaaaaaaaaa
BBBBBBBBBBBBBBBB bbbbbbbbbbbbbbbb
AaAaAaAaAaAaAaAa aAaAaAaAaAaAaAaA
CcCcCcCcCcCcCcCc cCcCcCcCcCcCcCcC