from math import sin
from functools import reduce

# 1
X = [int(input()) for _ in range(10)]

# 2
s = sum(x for x in X if x > 4)

# 3
p = reduce(lambda x, y: x * y, (x for x in X if x < 6))

# 4
print(max(enumerate(X)), key=lambda x: x[1])

# 5
l = len(x for x in X if x < 6)

# 6
X[4], X[8] = X[8], X[4]
print(X)

# 7
Y = [x for x in X if x < 7]
print(Y)

# 8
s = 0
for i, x in enumerate(X):
    num = 1 + i
    for n in range(2, i + 1):
        num *= (n + i)

    den = i
    for n in range(i - 1, 1, -1):
        den *= n

    s += num/den * sin(x)