void main() {
  import std.stdio, std.string, std.conv, std.algorithm;

  auto n = readln.chomp.to!(char[]);
  auto k = readln.chomp.to!(char[]);

  int s = 0;
  foreach (c; n) {
    s = (s * 10 + (c - '0')) % 6;
  }
  writeln("428571"[s]);

}

void rd(T...)(ref T x) {
  import std.stdio : readln;
  import std.string : split;
  import std.conv : to;

  auto l = readln.split;
  assert(l.length == x.length);
  foreach (i, ref e; x)
    e = l[i].to!(typeof(e));
}