#{{{ header
import algorithm, sequtils, tables, macros, math, sets, strutils
when defined(MYDEBUG):
  import header

proc scanf(formatstr: cstring){.header: "<stdio.h>", varargs.}
proc getchar(): char {.header: "<stdio.h>", varargs.}
proc nextInt(): int = scanf("%lld",addr result)
proc nextFloat(): float = scanf("%lf",addr result)
proc nextString(): string =
  var get = false
  result = ""
  while true:
    var c = getchar()
    if int(c) > int(' '):
      get = true
      result.add(c)
    else:
      if get: break
      get = false
template `max=`*(x,y:typed):void = x = max(x,y)
template `min=`*(x,y:typed):void = x = min(x,y)
template infty(T): untyped = ((T(1) shl T(sizeof(T)*8-2)) - 1)
#}}}

proc main():void =
  var
    s = stdin.readLine()
    t = stdin.readLine()
    vt = map(split(t),parseInt)
  if vt.len>1:
    echo "\"assert\""
    return
  var
    N = parseInt(s)
    a = vt[0]
    b = nextInt()
    c = nextInt()
    v = @[a+b,b+c,c+a].sorted().reversed()
  if v[0] > v[1]:
    echo v[1]
  else:
    echo v[2]
  discard

main()