View Compilation Error

0_0_37274762_21860.cpp: In function 'int main()':
0_0_37274762_21860.cpp:15:1: error: a function-definition is not allowed here before '{' token
 { int n,a,b,c,d,m;
 ^
0_0_37274762_21860.cpp:26:1: error: expected '}' at end of input
 }
 ^