# a, b = map(int, input().split())
# r = 0
# for i in range(a, b+1):
# if i % 2 == 1:
# if a == i:
# print(i, end='')
# r += i
# else:
# print('+', i, end='', sep='')
# r += i
# elif i % 2 == 0:
# print('-', i, end='', sep='')
# r -= i
# print('=', r, sep='')
# n = int(input()) # n = 2
# k = 0
# t = 0
# for i in range(1, n+1):
# if n <= i * i: # 1, 4, 9, 16, 25, 36, 49, 64....
# t = i - 1
# k = n - (t**2)
# break
#
# print(k, t)
# a = int(input())
# b = int(input())
# c = list(map(int, input().split()))
# for i in c:
# 1 = a * 0.1
# 2 = (1 - (1 * 0.1))
# 3 = 2 * 0.05
# 4 = (3 - (3 * 0.05))
# print('%.0f' % c )