View Compilation Error

0_0_21296642_751.cpp: In function 'int main()':
0_0_21296642_751.cpp:35:21: error: expected initializer before 'a'
         unsigned ll a,b,c;
                     ^
0_0_21296642_751.cpp:36:14: error: 'a' was not declared in this scope
         cin>>a>>b>>c;
              ^
0_0_21296642_751.cpp:36:17: error: 'b' was not declared in this scope
         cin>>a>>b>>c;
                 ^
0_0_21296642_751.cpp:36:20: error: 'c' was not declared in this scope
         cin>>a>>b>>c;
                    ^
0_0_21296642_751.cpp:37:21: error: expected initializer before 'p'
         unsigned ll p=b;
                     ^
0_0_21296642_751.cpp:38:21: error: expected initializer before 'n'
         unsigned ll n=a+b;
                     ^
0_0_21296642_751.cpp:39:16: error: 'n' was not declared in this scope
         while (n<c)
                ^
0_0_21296642_751.cpp:42:16: error: 'p' was not declared in this scope
             n+=p;
                ^
0_0_21296642_751.cpp:45:13: error: 'n' was not declared in this scope
         if (n==c)
             ^