c-gcc, 132 bytes

Result

WA

Duration

620ms

Code [DL]

main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}

stdin

f5s9m4i3j4p3oo2n4p9o6k7k9n2x2r7j6mg3l3h8a9d6e6d7k2x6c7v3svlz3b8j6e9qn2t7q3u4m7w9dy6p4u8y4j7f8

stdout

stderr

/tmp/code.c:1:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
 ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:20: error: 'b' undeclared (first use in this function)
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                    ^
/tmp/code.c:1:20: note: each undeclared identifier is reported only once for each function it appears in
/tmp/code.c:1:22: error: 'c' undeclared (first use in this function)
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                      ^
/tmp/code.c:1:21: warning: left-hand operand of comma expression has no effect [-Wunused-value]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                     ^
/tmp/code.c:1:24: error: 'd' undeclared (first use in this function)
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                        ^
/tmp/code.c:1:23: warning: left-hand operand of comma expression has no effect [-Wunused-value]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                       ^
/tmp/code.c:1:26: warning: implicit declaration of function 'gets' [-Wimplicit-function-declaration]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                          ^~~~
/tmp/code.c:1:45: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                                             ^~~~~~
/tmp/code.c:1:45: warning: incompatible implicit declaration of built-in function 'strlen'
/tmp/code.c:1:45: note: include '<string.h>' or provide a declaration of 'strlen'
+#include <string.h>
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                                             ^~~~~~
/tmp/code.c:1:54: warning: left-hand operand of comma expression has no effect [-Wunused-value]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                                                      ^
/tmp/code.c:1:112: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                                                                                                                ^~~~~~
/tmp/code.c:1:112: warning: incompatible implicit declaration of built-in function 'printf'
/tmp/code.c:1:112: note: include '<stdio.h>' or provide a declaration of 'printf'
+#include <stdio.h>
 main(){char i[101];b,c,d;gets(i);for(b=(int)strlen(i),d=b;b;b--)if(i[d-b]-48>9)for(c=1<i[d-b-1]-48<=9?:1;c;c--)printf("%c",i[d-b]);}
                                                                                                                ^~~~~~
/root/script: line 7: /tmp/code: not found
rm: can't remove '/tmp/code': No such file or directory

strace