View Compilation Error

0_0_30044039_1227.cpp:11:9: error: stray '\357' in program
         while(cas--）{
         ^
0_0_30044039_1227.cpp:11:9: error: stray '\274' in program
0_0_30044039_1227.cpp:11:9: error: stray '\211' in program
0_0_30044039_1227.cpp: In function 'int main()':
0_0_30044039_1227.cpp:11:23: error: expected ')' before '{' token
         while(cas--）{
                       ^