MATLAB code

J=[1 2 3 77 5; 77 1 2 77 3 ;1 2 3 4 5 ;1 2 3 4 5 ;1 77 3 4 5 ;1 2 3 4 5];
z=1; %starting value for z
y=1; %starting value for y

a=[0 0 0 0 0];%Making each row on matrix K equal to 00000, a is the value of row 1 on matrix K.
b=[0 0 0 0 0];%Making each row on matrix K equal to 00000, b is the value of row 1 on matrix K.
c=[0 0 0 0 0];%Making each row on matrix K equal to 00000, c is the value of row 1 on matrix K.
d=[0 0 0 0 0];%Making each row on matrix K equal to 00000, d is the value of row 1 on matrix K.
e=[0 0 0 0 0];%Making each row on matrix K equal to 00000, e is the value of row 1 on matrix K.
f=[0 0 0 0 0];%Making each row on matrix K equal to 00000, f is the value of row 1 on matrix K.
o=[0 0 0 0 0];%Making each row on matrix L equal to 00000, o is the value of row 1 on matrix L.
p=[0 0 0 0 0];%Making each row on matrix L equal to 00000, p is the value of row 1 on matrix L.
q=[0 0 0 0 0];%Making each row on matrix L equal to 00000, q is the value of row 1 on matrix L.
r=[0 0 0 0 0];%Making each row on matrix L equal to 00000, r is the value of row 1 on matrix L.
s=[0 0 0 0 0];%Making each row on matrix L equal to 00000, s is the value of row 1 on matrix L.
t=[0 0 0 0 0];%Making each row on matrix L equal to 00000, t is the value of row 1 on matrix L.


for i=1:length(J(1,:))% If row 1 of matrix J has 77 in any position set varible "a" equal to row 1 of matrix J
    if J(1,i)==77
  a=J(1, 1:5);
    end
end
for i=1:length(J(1,:))% If row 2 of matrix J has 77 in any position set varible "b" equal to row 2 of matrix J
    if J(2,i)==77
    b=J(2, 1:5);
    end

end
for i=1:length(J(1,:))% If row 2 of matrix J has 77 in any position set varible "c" equal to row 3 of matrix J
    if J(3,i)==77
    c=J(3, 1:5);

    end

end
for i=1:length(J(1,:))% If row 4 of matrix J has 77 in any position set varible "d" equal to row 4 of matrix J
    if J(4,i)==77
    d=J(4, 1:5);
    end

end
for i=1:length(J(1,:))% If row 5 of matrix J has 77 in any position set varible "e" equal to row 5 of matrix J
    if J(5,i)==77
    e=J(5, 1:5);
    end

end
for i=1:length(J(1,:))% If row 6 of matrix J has 77 in any position set varible "f" equal to row 6 of matrix J
    if J(6,i)==77
    f=J(6, 1:5);
    end

end


K=[a ;b ;c ;d ;e ;f]; %create matrix K with variables a b c d e and f

if a~=[0 0 0 0 0]% if "a" does not equal 00000 then add 1 to "z"
    z=z+1;
end

if a==[0 0 0 0 0]% if "a" does equal 00000 then delete the zth row of the matrix k

        K(z,:)=[]
end

if b~=[0 0 0 0 0]% if "b" does not equal 00000 then add 1 to "z"
    z=z+1;
end

if b==[0 0 0 0 0]% if "b" does equal 00000 then delete the zth row of the matrix k
K(z,:)=[]
end

if c~=[0 0 0 0 0]% if "c" does not equal 00000 then add 1 to "z"
    z=z+1;
end

if c==[0 0 0 0 0]% if "c" does equal 00000 then delete the zth row of the matrix k

K(z,:)=[]
end

if d~=[0 0 0 0 0]% if "d" does not equal 00000 then add 1 to "z"
    z=z+1;
end
if d==[0 0 0 0 0]% if "d" does equal 00000 then delete the zth row of the matrix k
K(z,:)=[]
end

if e~=[0 0 0 0 0]% if "e" does not equal 00000 then add 1 to "z"
    z=z+1;
end
if e==[0 0 0 0 0]% if "e" does equal 00000 then delete the zth row of the matrix k
K(z,:)=[]
end
if f~=[0 0 0 0 0]% if "f" does not equal 00000 then add 1 to "z"
    z=z+1;
end
if f==[0 0 0 0 0]% if "f" does equal 00000 then delete the zth row of the matrix k
K(z,:)=[]
end



if a==[0 0 0 0 0]% if "a" does =00000 (did not contain 77) then variable "o" equals row 1 of matrix J
    o=J(1, 1:5);
end

if b==[0 0 0 0 0]% if "b" does =00000 (did not contain 77) then variable "p" equals row 1 of matrix J
    p=J(2, 1:5);
end
 if c==[0 0 0 0 0]% if "c" does =00000 (did not contain 77) then variable "q" equals row 1 of matrix J
    q=J(3, 1:5);
 end

 if d==[0 0 0 0 0]% if "d" does =00000 (did not contain 77) then variable "r" equals row 1 of matrix J
    r=J(4, 1:5);
 end

 if e==[0 0  0 0 0]% if "e" does =00000 (did not contain 77) then variable "s" equals row 1 of matrix J
    s=J(5, 1:5);
 end

if f==[0 0 0 0 0]% if "f" does =00000 (did not contain 77) then variable "t" equals row 1 of matrix J
    t=J(6, 1:5);
end


L=[o ;p ;q ;r ;s ;t]; %create matrix L (matrix containing rows which did not include the number 77) using values for o p q r s t.



if o~=[0 0 0 0 0] %if "o" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if o==[0 0 0 0 0]% if "o" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end

if p~=[0 0 0 0 0]%if "p" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if p==[0 0 0 0 0]% if "p" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end

if q~=[0 0 0 0 0]%if "q" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if q==[0 0 0 0 0]% if "q" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end

if r~=[0 0 0 0 0]%if "r" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if r==[0 0 0 0 0]% if "r" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end

if s~=[0 0 0 0 0]%if "s" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if s==[0 0 0 0 0]% if "s" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end

if t~=[0 0 0 0 0]%if "t" does not equal 00000 the add 1 to "y"
    y=y+1;
end

if t==[0 0 0 0 0]% if "t" does equal 00000 then delete the yth row of Matrix L
    L(y,:)=[]
end