23 lines
324 B
C
23 lines
324 B
C
#include <stdio.h>
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int main(void) {
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int n;
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numInput:
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printf("Input positive integer: ");
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scanf("%d", &n);
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if (n < 0) {
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puts("Please input positive integer.");
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goto numInput;
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}
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for (int i = 1; i <= n; i++) {
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printf("%d", i % 10);
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}
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putchar('\n');
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return 0;
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}
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