a=12
a=1.2
a=inf
a=+inf
a=-inf
a=Inf
a=+Inf
a=-Inf
a=INF
a=+INF
a=-INF
a=infinity
a=+infinity
a=-infinity
a=Infinity
a=+Infinity
a=-Infinity
a=INFINITY
a=+INFINITY
a=-INFINITY
a=InFiNiTy
a=+InFiNiTy
a=-InFiNiTy
a=infiniti
a=+infiniti
a=-infiniti
a=true
a=false
a=True
a=False
a=TRUE
a=FALSE
