View Compilation Error

0_0_37078777_6473.cpp: In function 'int main()':
0_0_37078777_6473.cpp:6:22: error: 'long long' invalid for 'a'
     long long double a,b;
                      ^
0_0_37078777_6473.cpp:6:24: error: 'long long' invalid for 'b'
     long long double a,b;
                        ^