View Compilation Error

0_0_39194359_20456.cpp:5:5: error: cannot declare '::main' to be a global variable
    5 | int main(
      |     ^~~~
0_0_39194359_20456.cpp:7:3: error: expected primary-expression before 'char'
    7 |   char a,b,c;
      |   ^~~~
0_0_39194359_20456.cpp:7:3: error: expected '}' before 'char'
0_0_39194359_20456.cpp:6:1: note: to match this '{'
    6 | {
      | ^
0_0_39194359_20456.cpp:6:2: error: expected ')' before 'char'
    6 | {
      |  ^
      |  )
    7 |   char a,b,c;
      |   ~~~~
0_0_39194359_20456.cpp:5:9: note: to match this '('
    5 | int main(
      |         ^
0_0_39194359_20456.cpp:7:10: error: 'b' was not declared in this scope
    7 |   char a,b,c;
      |          ^
0_0_39194359_20456.cpp:7:12: error: 'c' was not declared in this scope
    7 |   char a,b,c;
      |            ^
0_0_39194359_20456.cpp:8:3: error: expected unqualified-id before 'while'
    8 |   while(cin >> a >> b >> c)
      |   ^~~~~
0_0_39194359_20456.cpp:18:1: error: expected declaration before '}' token
   18 | }
      | ^