foo.cc: In function 'int main()':
foo.cc:8:5: error: 'sacnf' was not declared in this scope
     sacnf("%d,%d,%d",&x,&y,&z);
     ^~~~~
foo.cc:8:5: note: suggested alternative: 'sscanf'
     sacnf("%d,%d,%d",&x,&y,&z);
     ^~~~~
     sscanf

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