30 lines
377 B
C
30 lines
377 B
C
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#include <stdio.h>
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int main(){
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printf("Enter the text, please: ");
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int c;
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while(( c = getchar()) != EOF){
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if( c >= 'a' && c <= 'z'){
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c = c - 32;
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}else if( c >= 'A' && c <= 'Z'){
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c = c + 32;
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}
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if(c != '\n'){
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if(c >= 32 && c <=126){
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putchar(c);
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}
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}else{
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putchar('\n');
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}
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}
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return 0;
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}
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