#!/usr/bin/env python3
import decimal
import time
#print(time.time())
#decimal.getcontext().prec = int(str(time.time()).split('.')[1][0:4])
decimal.getcontext().prec = 100
def arccot(n, terms):
base = 1 / decimal.Decimal(n)
print('!!!!!',base)
result = 0
sign = 1
for b in range(1, 2*terms, 2):
result += sign * (base ** b) / b
sign = -sign
return result
pi = 16 * arccot(5, 50) - 4 * arccot(239, 11)
print(pi)