self doubt

Question

Consider the following C program: 
 

int main (void)
{
    in/*this is an example*/z;
    
    double/*is it an error?*/y;
    
    print( “This is simple” );
    
    return 0;
}

- what is the error in this code semantic or syntax phase error ??

answer is given semantic but i think its a syntax phase error because in parse tree how can we derive 'in z' above which is not declared  

Comments

yes. No syntax rule will match two variables separated by a space in C - syntax error.

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so it will be a syntax phase error ?? right @Arjun sir