package main

import (
    "fmt"
    "math/cmplx"
)

var (
    ToBe bool     = false
    MaxInt uint64 = 1 << 64 - 1
    z complex128  = cmplx.Sqrt(-5 + 12i)
)

func main() {
    fmt.Printf("Type: %T Value: %v\n", ToBe, ToBe)
    fmt.Printf("Type: %T Value: %v\n", MaxInt, MaxInt)
    fmt.Printf("Type: %T Value: %v\n", z, z)
}