19.9991
s=19.999100!
e=1.999910e+01 f=19.999100 g=19.9991 G=19.9991!
e=-1.9999e+01 f= -19.9991 g=      -20!
e=1.9999e+01 f=  19.9991 g=       20!
e=1.9999e+01 f=19.9991   g=20       !
e=-1.9999e+01 f=-019.9991 g=-00000020!
e=1.9999e+01 f=0019.9991 g=000000020!
e=1.9999e+01 f=19.9991   g=20       !