j,n;char*p;main(s){for(;p=p?:gets(&s);*++p||(j=n=p=!printf("%d\n",j-5?-1:n)))n+=*p%32!="\x0c\x09\x0e\x15\x18"[j],j+=j!=2|!p[3];}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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