[ Source Code ]

#include <stdio.h>

#include <string.h>

int main ( void )

{
        char        data[] = 
                   ”  `1234567890-=QWERTYUIOP[]\\ASDFGHJKL;’ZXCVBNM,./”;

        char        input;

        int                j, data_len;
        data_len = strlen ( data );

        while ( ( input = getchar () ) != EOF ) {

                // 입력된 값을 data에서 찾아서 그전값을 출력해줌

                for ( j = 1 ; j < data_len ; j++ ) {

                        if ( input == data[j] ) {

                                printf ( “%c“, data[j-1] );

                                break;

                        }

                }

                if ( input == ‘\n’ )  {

                        printf ( “\n“ );

                }

        }
        return 0;
}