/in/foo.cc:1:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize(1)
 
/in/foo.cc:2:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize(3)
 
/in/foo.cc:3:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize(2)
 
/in/foo.cc:4:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("Ofast")
 
/in/foo.cc:5:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("inline")
 
/in/foo.cc:6:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fgcse")
 
/in/foo.cc:7:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fgcse-lm")
 
/in/foo.cc:8:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fipa-sra")
 
/in/foo.cc:9:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-ftree-pre")
 
/in/foo.cc:10:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-ftree-vrp")
 
/in/foo.cc:11:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fpeephole2")
 
/in/foo.cc:12:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-ffast-math")
 
/in/foo.cc:13:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fsched-spec")
 
/in/foo.cc:14:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("unroll-loops")
 
/in/foo.cc:15:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-falign-jumps")
 
/in/foo.cc:16:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-falign-loops")
 
/in/foo.cc:17:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-falign-labels")
 
/in/foo.cc:18:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fdevirtualize")
 
/in/foo.cc:19:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fcaller-saves")
 
/in/foo.cc:20:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fcrossjumping")
 
/in/foo.cc:21:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fthread-jumps")
 
/in/foo.cc:22:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-funroll-loops")
 
/in/foo.cc:23:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fwhole-program")
 
/in/foo.cc:24:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-freorder-blocks")
 
/in/foo.cc:25:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fschedule-insns")
 
/in/foo.cc:26:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("inline-functions")
 
/in/foo.cc:27:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-ftree-tail-merge")
 
/in/foo.cc:28:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fschedule-insns2")
 
/in/foo.cc:29:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fstrict-aliasing")
 
/in/foo.cc:30:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fstrict-overflow")
 
/in/foo.cc:31:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-falign-functions")
 
/in/foo.cc:32:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fcse-skip-blocks")
 
/in/foo.cc:33:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fcse-follow-jumps")
 
/in/foo.cc:34:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fsched-interblock")
 
/in/foo.cc:35:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fpartial-inlining")
 
/in/foo.cc:36:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("no-stack-protector")
 
/in/foo.cc:37:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-freorder-functions")
 
/in/foo.cc:38:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-findirect-inlining")
 
/in/foo.cc:39:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fhoist-adjacent-loads")
 
/in/foo.cc:40:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-frerun-cse-after-loop")
 
/in/foo.cc:41:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("inline-small-functions")
 
/in/foo.cc:42:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-finline-small-functions")
 
/in/foo.cc:43:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-ftree-switch-conversion")
 
/in/foo.cc:44:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-foptimize-sibling-calls")
 
/in/foo.cc:45:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fexpensive-optimizations")
 
/in/foo.cc:46:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-funsafe-loop-optimizations")
 
/in/foo.cc:47:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("inline-functions-called-once")
 
/in/foo.cc:48:0: warning: ignoring #pragma G  [-Wunknown-pragmas]
 #pragma G++ optimize("-fdelete-null-pointer-checks")
 
/in/foo.cc:49:9: warning: #pragma once in main file
 #pragma once
         ^~~~
/in/foo.cc: In function 'std::__cxx11::string reads()':
/in/foo.cc:92:15: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  while (c>='a'&&c<='z'||c>='A'&&c<='Z') s+=c,c=getchar();
         ~~~~~~^~~~~~~~