[2010] 플러그

# 런타임 에러
N = int(input())
sum = 0
for i in range(N):
    sum += int(input().split())
print(sum - (N-1))

N = int(sys.stdin.readline())
sum = 0
for i in range(N):
    sum += int(sys.stdin.readline())
print(sum - (N-1))