View Compilation Error

0_0_15705343_26866.cpp: In function 'int main()':
0_0_15705343_26866.cpp:8:22: error: 'c' was not declared in this scope
     while(cin>>a>>b>>c)
                      ^
0_0_15705343_26866.cpp: At global scope:
0_0_15705343_26866.cpp:25:1: error: expected declaration before '}' token
 }
 ^