Main.cc:2:30: error: stray ‘#’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:32: error: stray ‘\344’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:33: error: stray ‘\275’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:34: error: stray ‘\215’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:35: error: stray ‘\350’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:36: error: stray ‘\277’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:37: error: stray ‘\220’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:38: error: stray ‘\347’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:39: error: stray ‘\256’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:40: error: stray ‘\227’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:41: error: stray ‘\345’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:42: error: stray ‘\267’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:43: error: stray ‘\246’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:44: error: stray ‘\347’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:45: error: stray ‘\247’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:46: error: stray ‘\273’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:47: error: stray ‘\347’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:48: error: stray ‘\233’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:49: error: stray ‘\270’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:50: error: stray ‘\345’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:51: error: stray ‘\275’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:52: error: stray ‘\223’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:53: error: stray ‘\344’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:54: error: stray ‘\272’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:55: error: stray ‘\216’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:56: error: stray ‘\344’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:57: error: stray ‘\271’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:58: error: stray ‘\230’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:59: error: stray ‘\344’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:60: error: stray ‘\273’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:2:61: error: stray ‘\245’ in program
result = (1 << (n + 1)) - 2 # 位运算左移相当于乘以 2^(n+1)
^
Main.cc:1:1: error: ‘n’ does not name a type
n = int(input())
^