View Compilation Error

0_0_29666889_7207.cpp:24:1: error: stray '\273' in program
 基本的7块+(6 + n + 6 - 1)/2
 ^
0_0_29666889_7207.cpp:24:1: error: stray '\371' in program
0_0_29666889_7207.cpp:24:1: error: stray '\261' in program
0_0_29666889_7207.cpp:24:1: error: stray '\276' in program
0_0_29666889_7207.cpp:24:1: error: stray '\265' in program
0_0_29666889_7207.cpp:24:1: error: stray '\304' in program
0_0_29666889_7207.cpp:24:1: error: stray '\277' in program
0_0_29666889_7207.cpp:24:1: error: stray '\351' in program
0_0_29666889_7207.cpp:24:7: error: expected unqualified-id before numeric constant
 基本的7块+(6 + n + 6 - 1)/2
       ^