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- int ret = 0;
- do {
- fopen(...);
- if(/* Error */){
- ret = 1; break;
- }
- do {
- malloc(...);
- if(/* Error */){
- ret = 2; break;
- }
- do {
- parseInt(...);
- if(/* Error */){
- ret = 3; break;
- }
- } while(0);
- free(...);
- } while(0);
- fclose(...);
- return ret;
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