# Computes pi
# ToDo: draw a bigger circle for more precision

s = ('    __    \n'
     '  -    -  \n'
     ' -      - \n'
     '|        -\n'
     ' -      - \n'
     '  -    -  \n'
     '    --    \n')

c = 0.0
r = 0.0

for _ in s:
    if _ == '-':
        c += 1.0
    if _ == '\n':
        r += 1.0

# Each Symbol accounts for 2 units in circumference
c *= 2

# Radius, not diameter
r /= 2

print(c/2/r)