# Less than 10 lines of code needed #
'''
x = 1
total = 0
a = 0

while (a == 0) :
    if x == 10:
        print (total)
        break 
    else:
        total = total + x
        x = x + 1


'''

x = 1
total = 0


for x in range(0,11):
    
    if x == 10:
        print(total)
        break
    else:
        total = total + x
        x = x + 1
        
