21 lines
326 B
C
21 lines
326 B
C
#include <stdio.h>
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int main(){
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int c = 1;
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char small[] = "abcdefghijklmnopqrstuvwxyz";
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char big[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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while(c = 1){
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c = getchar();
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for(int i = 0; i < 26; i++){
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if(c == small[i]){
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c = big[i];
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break;
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}else if(c == big[i]){
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c = small[i];
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break;
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}
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}
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}
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return 0;
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}
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