View Compilation Error

0_0_32906667_7021.cpp: In function 'int main()':
0_0_32906667_7021.cpp:108:12: error: initializer-string for array of chars is too long [-fpermissive]
  char c[4]="FIFO",d[4]="FILO",a[3]="IN",b[3]="OUT";
            ^
0_0_32906667_7021.cpp:108:24: error: initializer-string for array of chars is too long [-fpermissive]
  char c[4]="FIFO",d[4]="FILO",a[3]="IN",b[3]="OUT";
                        ^
0_0_32906667_7021.cpp:108:46: error: initializer-string for array of chars is too long [-fpermissive]
  char c[4]="FIFO",d[4]="FILO",a[3]="IN",b[3]="OUT";
                                              ^