21 lines
404 B
C
21 lines
404 B
C
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#include <stdio.h>
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#include <string.h>
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int main() {
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char originstr[10];
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scanf("%s", originstr);
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char * origin = originstr, * comma = ",", result[20];
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if(strlen(origin) > 3) {
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int pos = strlen(origin) - 3;
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strncpy(result, origin, pos);
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result[pos] = '\0';
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strcat(result, comma);
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strcat(result, origin + pos);
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printf("%s\n", result);
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}
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else {
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printf("%s\n", origin);
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}
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return 0;
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}
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