void _main(){int data;data=-1;fscanf (stdin, "%d", &data);{int data_copy=data;int data=data_copy;{int result=data * 2;printIntLine(result);}}}
static void main(){int data;data=-1;fscanf (stdin, "%d", &data);{int data_copy=data;int data=data_copy;{int result=-1;if (data <=(INT_MAX/2)){result=data * 2;printIntLine(result);}else{printLine("Input value is too large to perform arithmetic safely.");}}}}