import sys

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines


N, *A = map(int, read().split())

sm = sum(A)
if sm % N:
    print('No')
    sys.exit()

num = sm // N
c1 = 0
c2 = 0
for i in range(1, N):
    if abs(A[i] - A[i - 1]) % N == 0:
        continue
    else:
        print('No')
        break
else:
    print('Yes')