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31 lines
580 B
C
31 lines
580 B
C
#include <stdio.h>
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#include <string.h>
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int main()
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{
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int N, n1, n2, e;
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char string[81];
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scanf("%s", string);
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N = strlen(string);
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/* the math is: n1 = n3; n2 >= n1; n2 + 2n1 = N + 2 */
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e = ((N % 3) + 2) % 3;
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n1 = (N + 2 - e) / 3;
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n2 = n1 + e;
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for(int i = 0; i < n1; i++)
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{
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putchar(string[i]);
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for(int j = 0; j < n2 - 2; j++)
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if(i < n1 - 1)
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putchar(' ');
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else
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putchar(string[n1 + j]);
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putchar(string[N - 1 - i]);
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putchar('\n');
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}
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return 0;
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}
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