PGE index file  beginbegin calcsQ Introm Book~math BookLn#0 ExitCode#0 Key0 MaxCol#80P MaxRow#25 Random#0 RandomBase#100d TestFalse Topicbegin Topic#0 TopicFrombegin TopicPath#0 TopicReps#0 TopicZerobegin Version12 RandomBase# Book BookLn# ExitCode# TopicPath# Test TopicFrom MaxCol# MaxRow# Topic Key Random# TopicReps# Topic# Version TopicZero