View Compilation Error

0_0_27111558_30361.cpp: In function 'int main()':
0_0_27111558_30361.cpp:4:14: error: 'm' was not declared in this scope
 {scanf("%d",&m);
              ^
0_0_27111558_30361.cpp:5:24: error: 'a' was not declared in this scope
  while(scanf("%d%d%d",&a,&b,&c)!=EOF)
                        ^
0_0_27111558_30361.cpp:5:27: error: 'b' was not declared in this scope
  while(scanf("%d%d%d",&a,&b,&c)!=EOF)
                           ^
0_0_27111558_30361.cpp:5:30: error: 'c' was not declared in this scope
  while(scanf("%d%d%d",&a,&b,&c)!=EOF)
                              ^