#!/usr/bin/env python3

import decimal


def main():
    decimal.getcontext().prec = 100
    decimal.getcontext().rounding = decimal.ROUND_DOWN
    a, b = (decimal.Decimal(z) for z in input().split())
    res = a / b
    print("{:.50f}".format(res))


if __name__ == "__main__":
    main()