This is METAFONT, WAITS Version 0.91 (preloaded base=plain 85.5.13)  19 MAY 1985 00:57
**btest0
(BTEST0.MF[CM,DEK] (CMBASE.MF[CM,DEK]) (CMB10.MF[CM,DEK]) (TEST0.MF[CM,DEK]
The letter e
! I can't write on file `btest0.gf'.
Please type another file name for output: btest0.g
[101]
done with char 101. 
)
Output written on BTEST0.G[CM,DEK] (1 character, 1376 bytes).