89 in awk. http://git.debu.gs/gitweb/?p=euler;a=commitdiff;h=008c51e4c4059df3ff9f4633fdebb5a5912f283f code, git.debu.gs | 2018-07-05 20:22:40 +0000 GMT | No.772 89 in awk. [DH] awk/089.awk [DH] data/089.txt