View Compilation Error

0_0_38575181_83.cpp: In function 'int main()':
0_0_38575181_83.cpp:5:31: error: unable to find numeric literal operator 'operator""B'
         printf("%25d\n\n", a %2B b);
                               ^~
0_0_38575181_83.cpp:5:31: note: use -fext-numeric-literals to enable more built-in suffixes