pimpimmi

#!/usr/bin/env python
# encoding: utf-8
from random import random
from heapq import heappush, nsmallest, nlargest
import time, sys
from sets import Set

def rotl32(a, b):
    return (((a << (b & 0x1f)) & 0xffffffff) |
            ((a >> (32 - (b & 0x1f))) & 0xffffffff))