c;char*p;main(i,s){for(;p=gets(s);printf("%d\n",i>4?c:-1))for(i=c=0;*p;++p-2>s&&*p*p[1]*p[2]||i++)c+=*p%32!="\x0c\x09\x0e\x15\x18"[i];}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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