readln.nim

import macros, strutils

template readLn(args: varargs[typed]): untyped = 
  let data = stdin.readLine().split()
  var i = 0
  while i < args.len:
    let value = data[i]
    when arg is int:
      arg = parseInt(value)
    elif arg is float:
      arg = parseFloat(value)
    elif arg is string:
      arg = value
    elif arg is bool:
      arg = parseBool(value)
    inc i

var 
  a, b, c: int
  d: bool

readLn(a, b, c, d)