INTCONSTTOOBIG

Message        This integer constant is too large for the long long
               type.  It will be given the unsigned long long type.

Description    The C99 standard specifies that a decimal constant
               must fit in a signed type.  This constant is too
               large for the long long int type.  For compatibility
               with older versions of the compiler, the constant
               will be given the unsigned long long type.

User Action    Append a 'U' suffix to the constant.  This will force
               it to be unsigned.