# Method 1

Gauss1 = 0
for num in range(1,101):
Gauss1 += num
print(Gauss1)

# Method 2

Gauss2 = 0
for num in range(2,101,1):
Gauss2 += num
Gauss2 += 1
print(Gauss2)

# Method 3

Gauss3 = 0
for num in range(1,101):
if num % 2 == 0:
Gauss3 += num
Gauss3 += 2500
print(Gauss3)