Buggy python submission (verdict: Runtime Error):
n,m = map(int,input().split())
li = [int(input()) for i in range(m)]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(max(li_new)+1,10))
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+1):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
for i in li_new:
    ans *= fib[i]
print(ans%1000000007)

Fixed submission:
n,m = map(int,input().split())
if m > 0:
    li = [int(input()) for i in range(m)]
else:
    li = [0]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(max(li_new)+2,3))
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+2):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
if m > 0:
    for i in li_new:
        ans *= fib[i]
else:
    ans = fib[n+1]
print(ans%1000000007)

Buggy python submission (verdict: Runtime Error):
n,m = map(int,input().split())
li = [int(input()) for i in range(m)]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(max(li_new)+1,3))
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+1):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
for i in li_new:
    ans *= fib[i]
print(ans%1000000007)

Fixed submission:
n,m = map(int,input().split())
if m > 0:
    li = [int(input()) for i in range(m)]
else:
    li = [0]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(max(li_new)+2,3))
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+2):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
if m > 0:
    for i in li_new:
        ans *= fib[i]
else:
    ans = fib[n+1]
print(ans%1000000007)

Buggy python submission (verdict: Runtime Error):
n,m = map(int,input().split())
li = [int(input()) for i in range(m)]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(li_new)+1)
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+1):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
for i in li_new:
    ans *= fib[i]
print(ans%1000000007)

Fixed submission:
n,m = map(int,input().split())
if m > 0:
    li = [int(input()) for i in range(m)]
else:
    li = [0]

#連続する壊れていない階段の数を求める
li_new = [-1]*(m+1)
li_new[0] = li[0]
for i in range(1,m):
    li_new[i] = li[i] - (li[i-1]+1)
li_new[m] = n - li[m-1]
#print(li_new)

#必用な部分までのフィボナッチ数をリストに保存
fib = [0] * (max(max(li_new)+2,3))
fib[0] = 0
fib[1] = 1
fib[2] = 1
for i in range(3,max(li_new)+2):
    fib[i] = fib[i-2] + fib[i-1]
#print(fib)

#連続する壊れていない階段の数ごとのフィボナッチ数の積
ans = 1
if m > 0:
    for i in li_new:
        ans *= fib[i]
else:
    ans = fib[n+1]
print(ans%1000000007)