nadesiko, 138 bytes

Result

WA

Duration

704ms

Code [DL]

i=0
A=空配列
標準入力取得した時には(s)
 t=sを「 」で区切る
 A[3*i]=t@0
 A[3*i+1]=t@1
 A[3*i+2]=t@2
 i=i+1
Aを表示

stdin

63 92 69
96 62 59
41 83 98
10 50 01

stdout

[ '63', '92', '69' ]
[ '63', '92', '69', '96', '62', '59' ]
[ '63', '92', '69', '96', '62', '59', '41', '83', '98' ]
[ '63', '92', '69', '96', '62', '59', '41', '83', '98', '10', '50', '01' ]

stderr

strace