import math

print "COS"
print

def mycos(x):
    sum = 0.0
    for k in range(0, 1000):
        sum += (((-1) ** k) * (x ** (2 * k)))/math.factorial(2 * k)
    return sum

for x in range(0, 51, 5):
    print "x = ", x
    print "my = ", mycos(x)
    print "cos = ", math.cos(x)
    print "del = ", math.fabs(math.cos(x) - mycos(x))
    print

print "SIN"
print

def mysin(x):
    sum = 0.0
    for k in range(0, 1000):
        sum += (((-1) ** k) * (x ** (2 * k + 1)))/math.factorial(2 * k + 1)
    return sum

for x in range(0, 51, 5):
    print "x = ", x
    print "my = ", mysin(x)
    print "sin = ", math.sin(x)
    print "del = ", math.fabs(math.sin(x) - mysin(x))
    print